bullet Books

1.       Daganzo, C.F. and Ouyang, Y. Public Transportation Systems: Principles of System Design, Operations Planning and Real-Time Control. World Scientific Publishing Company, Singapore. Forthcoming.

2.       The American Association of State Highway and Transportation Officials (AASHTO), Highway Safety Manual, 1st ed. (in Chinese) Translated by An, S., Wang, J. and Ouyang, Y., People's Communications Publishing House, Beijing, China. 2016. (Original work published in 2010).

3.       Daganzo, C.F. Public Transportation Systems: Basic Principles of System Design, Operations Planning and Real-Time Control (UC Berkeley Course Notes Series). (in Chinese) Translated by Li, M. and Ouyang, Y., People's Communications Publishing House, Beijing, China. 2016.


bullet Journal Publications

1.       Petit, A., Ouyang, Y. and Lei, C. (2018) “Dynamic bus substitution strategy for bunching intervention.” Transportation Research Part B. Accepted.

2.       Xie, S., Lei, C. and Ouyang, Y. (2018) “A customized hybrid approach to infrastructure maintenance scheduling in railroad networks under variable productivitiesComputer-aided Civil and Infrastructure Engineering. In press.

3.       Zhang, K., Lu, L., Lei, C., Zhu, H. and Ouyang, Y. (2018) "Joint operations of electric aircraft systems and power networks through dynamic pricing." Transportation Research Part C, 92: 472–485.

4.       Lei, C. and Ouyang, Y. (2018) “Continuous approximation for demand balancing in solving large-scale one-commodity pickup and delivery problemsTransportation Research Part B. 109: 90–109.

5.       Ansari, S. Basderea, M., Li, X., Ouyang, Y., Smilowitz, K. (2018) "Advancements in continuum approximation models for logistics and transportation systems: 1996 - 2016." Transportation Research Part B, 107: 229-252.

6.       Ghosh, L., Abdelmohsen, A., El-Rayes, K. and Ouyang, Y. (2018) “Temporary traffic control strategy optimization for urban freeways.” Transportation Research Record. Accepted.

7.       Lu, L., Wang, X., Ouyang, Y., Roningen, J., Myers, N., and Calfas, G. (2018) "Vulnerability of interdependent urban infrastructure networks: equilibrium after failure propagation and cascading impacts." Computer-aided Civil and Infrastructure Engineering, 33(4): 300-315.

8.      Zhang, L., Fu, L., Gu, W., Ouyang, Y., Hu, Y. (2017) "A general iterative approach for the system-level joint optimization of pavement maintenance, rehabilitation, and reconstruction planning." Transportation Research Part B, 105: 378-400.

9.       Lei, C., Zhang, Q., and Ouyang, Y. (2017) “Planning of parking enforcement patrol considering drivers' parking payment behaviorTransportation Research Part B, 106: 375-392. 

10.   Liu, Z., Wang, S. and Ouyang, Y. (2017) “Reliable biomass supply chain design under feedstock seasonality and probabilistic facility disruptionsEnergies, 10(11): 1895.

11.    Wang, X., Lim, M.K. and Ouyang, Y. (2017) “Food-energy-environment trilemma: Policy impacts on farmland use and biofuel industry developmentEnergy Economics, 67: 35-48.

12.    Jiang, Z., Chen, X., and Ouyang, Y. (2017) "Traffic state and emission estimation for urban expressways based on heterogeneous data." Transportation Research Part D, 53: 440-453.

13.    An, K., Xie, S. and Ouyang, Y. (2017) "Reliable sensor location for object positioning and surveillance via trilateration." Transportation Research Part B, in press; joint publication in ISTTT 22 Proceedings.

14.    Lei, C. and Ouyang, Y. (2017) "Dynamic pricing and reservation for intelligent urban parking management." Transportation Research Part C, 77: 226-244.

15.  Wang, X., Lim M.K. and Ouyang, Y. (2017) “A continuum approximation approach to the dynamic facility location problemTransportation Science, 51(1): 343 - 357.

16.    Xie, S. and Ouyang, Y. (2016) "Railroad caller districting with reliability, contiguity, balance, and compactness considerations." Transportation Research Part C, 73: 65-76.

17.    An, K. and Ouyang, Y. (2016) “Robust grain supply chain design considering post-harvest loss and harvest timing equilibriumTransportation Research Part E, 88: 110–128.

18.   Hajibabai, L. and Ouyang, Y. (2016) "Resource replenishment location planning for service trucks under network congestion and routing constraints." Transportation Research Record, 2567: 10-17.

19.    Hajibabai, L. and Ouyang, Y. (2016) "Dynamic snow plow fleet management under uncertain demand and service disruption." IEEE Transactions on Intelligent Transportation Systems, 17(9): 2574-2582.

20.   Ouyang, Y., Geroliminis, N. and Nie, Y. (2015) "Optimization of urban transportation service networks." Transportation Research Part B, 81: 331–332. (editorial)

21.    Liu, L., Hwang, T., Lee, S., Ouyang, Y., Lee, B., Smith, S., Yan, F., Daenzer, K. and Bond, T.C. (2015) "Emission projections for long-haul freight trucks and rail in the United States through 2050." Environmental Science and Technology, 49 (19): 11569–11576.

22.   Housh, M., Yaeger, M., Cai, X., McIsaac, G., Khanna, M., Sivapalan, M., Ouyang, Y., Al-Qadi, I., Jain, A. (2015) "Managing multiple mandates: a system of systems model to analyze strategies for producing cellulosic ethanol and reducing riverine nitrate loads in the upper Mississippi river basin." Environmental Science & Technology, 49 (19): 11932–11940.

23.   Bai, Y., Ouyang, Y. and Pang, J.S. (2016) “Enhanced models and improved solution for competitive biofuel supply chain design under land use constraintsEuropean Journal of Operational Research, 249(1):281–297.

24.   Xie, S., Chen, X., Wang, Z., Ouyang, Y., Somani, K. and Huang, J. (2015) "Integrated planning of multi-type locomotive service facilities under location, routing and inventory considerations." Interfaces, 46(5): 391 - 408. (Finalist for 2015 INFORMS Daniel H. Wagner Prize)

25.   Nourbakhsh, S.M., Bai, Y. Maia, G., Ouyang, Y. and Rodriguez, L.F. (2016) “Grain supply chain network design and logistics planning for reducing post-harvest loss Biosystems Engineering, 151: 105–115.

26.  Rhoades, C., Wang, X. and Ouyang, Y. (2016) “Calibration of nonlinear car-following laws for traffic oscillation Transportation Research Part C, 69: 328–342. 

27.   An, S., Cui, N., Bai, Y., Xie, W., Chen, M. and Ouyang, Y. (2015) "Reliable emergency service facility location under facility disruption, en-route congestion and in-facility queuing." Transportation Research Part E, 82: 199–216.

28.   Xie, S., Li, X. and Ouyang, Y. (2015) "Decomposition of general facility disruption correlations via augmentation of virtual supporting stations." Transportation Research Part B, 80: 64-81.

29.   Ouyang, Y., Wang, Z. and Yang, H. (2015) "Facility location design under continuous traffic equilibrium." Transportation Research Part B, 81(1): 18-33.

30.   Xie, W., Ouyang, Y. and Wong S.C. (2016) “Reliable location-routing design under probabilistic facility disruptionsTransportation Science, 50(3): 1128-1138.

31.    Hwang, T. and Ouyang, Y. (2015) “Urban freight truck routing under stochastic congestion and emission considerations." Sustainability, 7(6), 6610-6625.

32.   Wang, Z., Wang, X. and Ouyang, Y. (2015) "Bounded growth of the bullwhip effect under a class of nonlinear ordering policies." European Journal of Operational Research. , 247(1): 72–82.

33.   Wang, X., Lim, M.K. and Ouyang, Y. (2015) “Infrastructure deployment under uncertainties and competition: The biofuel industry caseTransportation Research Part B, 78: 1-15.

34.   Xie, W. and Ouyang, Y. (2015) "Optimal layout of transshipment facility locations on an infinite homogeneous plane." Transportation Research Part B, 75: 74-88.

35.   Ghosh, L., Lu, L., Ozer, H., Ouyang, Y. and Al-Qadi, I. (2015). “Effects of pavement surface roughness and congestion on expected freeway traffic energy consumptionTransportation Research Record, 2503: 10-19.

36.   Bai, Y., Li, X., Peng, F., Wang, X., and Ouyang, Y. (2015) “Effects of disruption risks on biorefinery location designEnergies, 8(2), 1468-1486.

37.   Bai, Y., Hernandez-Urrea, J.A., Gungor, O.E., Ouyang, Y. and Al-Qadi, I.L. (2015) "Optimal pavement design and rehabilitation planning using a mechanistic-empirical approach." EURO Journal on Transportation and Logistics, 4(1): 57-73.

38.   Wang, Z., Chen, X., Ouyang, Y., and Li, M. (2015) “Emission mitigation via longitudinal control of intelligent vehicles in a congested platoon Computer-Aided Civil and Infrastructure Engineering, 30(6): 490–506.

39.   Housh, M., Cai, X., Ng, T.L., McIsaac, G., Ouyang, Y.,  Khanna, M., Murugesu, S., Atul, J., Eckhoff, S., Gasteyer, S., Al-Qadi, I., Bai, Y., Yaeger, M., Ma, M., Song, Y. (2015) “System of systems model for analysis of biofuel development. ” Journal of Infrastructure Systems (ASCE), 21(3): 04014050.

40.   Mackowski, D., Bai, Y. and Ouyang, Y. (2014) "Parking space management via dynamic performance-based pricing." Transportation Research Part C, 59: 66–91. (Also: joint publication in ISTTT 21 Procedia.) 

41.    Ouyang, Y. (2014) “Experimental study on using advance demand information to mitigate the bullwhip effect via decentralized negotiationsTransportmetrica B, 2(3): 169-187.

42.   Ouyang, Y., Nourbakhsh, S.M. and Cassidy, M. (2014) “Continuum approximation approach to transit network design under heterogeneous demandTransportation Research Part B, 68: 333-344.

43.   Hajibabai, L., Bai, Y. and Ouyang, Y. (2014) “Joint optimization of freight facility location and pavement infrastructure rehabilitation under network traffic equilibriumTransportation Research Part B, 63: 38-52.

44.   Xie, W., Ouyang, Y. and Somani, K. (2014) "Planning location and capacity for multiple types of locomotive maintenance shops." Computer-Aided Civil and Infrastructure Engineering, 31 (3), pp. 163-175.

45.   Peng, F., Wang, X. and Ouyang, Y. (2014) “Approximation of discrete spatial data for continuous facility location designIntegrated Computer-Aided Engineering, 21(4): 311-320.

46.   Smith, R., Ferrebee, E., Ouyang, Y. and Roesler, J.R. (2014) “Optimal staging area locations and material recycling strategies for sustainable highway reconstructionComputer-Aided Civil and Infrastructure Engineering, 29(8): 559–571.

47.   Hwang, T. and Ouyang, Y. (2014) "Assignment of freight shipment demand in congested railroad networks." Transportation Research Record, 2448: 37-44.

48.   Hajibabai, L., Nourbakhsh, S.M., Ouyang, Y. and Peng, F. (2014) “Network routing of snowplow trucks with resource replenishment and plowing priorities: Formulation, algorithm, and applicationTransportation Research Record, 2440: 16-25.

49.   Bai, Y., Kou, X., An, S., Ouyang, Y., Wang, J. and Zhu, X. (2014) "Integrated planning of tourism investment and transportation network design." Transportation Research Record, 2467(2): 91-100.

50.   Peng, F. and Ouyang, Y. (2014) "Optimal clustering of railroad track maintenance jobs." Computer-aided Civil and Infrastructure Engineering, 29(4): 235-247.

51.    Peng, F., Ouyang, Y. and Somani, K. (2013) "Scheduling of periodic inspections in large-scale railroad networks." Journal of Rail Transport Planning & Management, 3: 163-171.

52.   Wang, X.L., Ouyang, Y., Yang, H. and Bai, Y. (2013) “Optimal biofuel supply chain design under consumption mandates with renewable identification numbers Transportation Research Part B, 57: 158-171.

53.   Hwang, T. and Ouyang, Y. (2013) "Freight shipment modal split and its environmental impacts: An exploratory study." Journal of the Air & Waste Management Association, 64(1): 2-12.

54.   An, S., Cui, N., Li, X. and Ouyang, Y. (2013) "Reliable pickup locations for transit-based evacuation under the risk of service disruptions." Transportation Research Part B, 54(1): 1-16.

55.   Li, X., Ouyang, Y., Peng, F. (2013) "A supporting station model for reliable infrastructure location design under interdependent disruptions." Transportation Research Part E, 60: 80-93.

56.   Xie, W. and Ouyang, Y. (2013) "Dynamic planning of facility locations with benefits from multi-type facility co-location." Computer-aided Civil and Infrastructure Engineering, 28(9): 666-678.

57.   Peng, F., Hwang, T. and Ouyang, Y. (2013) "Formulation and algorithms for a discrete minimum-cost group assembly problem." Transportation Research Record, 2333(1): 9-15.

58.   Wang, X. and Ouyang, Y. (2013) "A continuum approximation approach to competitive facility location design under facility disruption risks." Transportation Research Part B, 50(1): 90–103. 

59.   Hajibabai, L and Y. Ouyang. (2013) “Integrated planning of supply chain networks and multimodal transportation infrastructure expansion: Model development and application to the biofuel industryComputer-aided Civil and Infrastructure Engineering, 28(4): 247-259.

60.   Gu, W., Cassidy, M.J., Gayah, V.V. and Ouyang, Y. (2013) "Mitigating negative impacts of near-side bus stops on cars." Transportation Research Part B,  47(1): 42-56.

61.    Nguyen, T.D., Cai, X., Ouyang, Y. and Housh, M. (2016) "Modeling infrastructure interdependencies, resiliency and sustainability." International Journal of Critical Infrastructures, 12(1-2): 4-36.

62.   Li, X. and Ouyang, Y. (2012) “Reliable traffic surveillance sensor deployment under probabilistic disruptions and generalized surveillance effectiveness measuresOperations Research. 60(5): 1183-1198.

63.   Peng, F. and Ouyang, Y. (2012) "Track maintenance production team scheduling in railroad networks." Transportation Research Part B, 46(10): 1474–1488. (data for the numerical experiments)

64.   Bai, Y., Ouyang, Y. and Pang, J.S. (2012) "Biofuel supply chain design under competitive agricultural land use and feedstock market equilibrium." Energy Economics, 34 (5): 1623-1633.

65.   Gu, W., Ouyang, Y. and Madanat, S. (2012) "Joint optimization of pavement maintenance and resurfacing planning." Transportation Research Part B, 46(4): 511-519.

66.   Li, X., Wang, X. and Ouyang, Y. (2012) "Prediction and field validation of traffic oscillation propagation under nonlinear car-following laws." Transportation Research Part B, 46(3): 409-423.

67.   Chang, L., Peng, F., Ouyang, Y., Elnashai, A.S. and Spencer, B.F. (2012) “Bridge seismic retrofit program planning to maximize post-earthquake transportation network capacityJournal of Infrastructure Systems (ASCE), 18(2): 75-88.

68.   Nourbakhsh, S.M. and Ouyang, Y. (2012) “A structured flexible transit system for low demand areasTransportation Research Part B, 46(1): 204-216.

69.   Li, X. and Ouyang, Y. (2011) “Characterization of traffic oscillation propagation under nonlinear car-following lawsTransportation Research Part B, 45(9): 1346-1361.

70.   Chen, Q., Li, X. and Ouyang, Y. (2011) "Joint inventory-location problem under the risk of probabilistic facility disruptions." Transportation Research Part B, 45(7): 991-1003.

71.    Ng, T.L., Cai, X. and Ouyang, Y. (2011) "Implications of biofuel development for engineering infrastructures in the United States." Biofuels, Bioproducts & Biorefining, 5(5): 581-592.

72.   Peng, F., X. Li and Y. Ouyang. (2011) "Installation of railroad wayside defect detectors: Multiperiod designTransportation Research Record, 2261: 148-154.

73.   Chen, A.Y., Peρa-Mora, F.  and Ouyang, Y. (2011) "A collaborative GIS framework to support equipment distribution for civil engineering disaster response operations." Automation in Construction, 20(5): 637-648.

74.   Li, X. and Ouyang, Y. (2011) “Reliable sensor deployment for network traffic surveillanceTransportation Research Part B, 45(1): 218–231.

75.   Gonzalez, H., Han, J., Ouyang, Y. and Seith, S. (2011) “Multidimensional data mining of traffic anomalies on large-scale road networksTransportation Research Record, 2215: 75-84.

76.   Bai, Y., Hwang, T., Kang, S. and Ouyang, Y. (2011) “Biofuel refinery location and supply chain planning under traffic congestion.” Transportation Research Part B, 45(1): 162–175.

77.   Jo, J.H., Lee, J.S. and Ouyang, Y. and Peng, F. (2011) “Integrated decision support for roadway safety analysisJournal of Computing in Civil Engineering (ASCE), 25(1): 50-56.

78.   Peng, F, Kang, S., Li, X., Ouyang, Y., Somani, K. and Acharya D. (2011) “A heuristic approach to railroad track maintenance scheduling problemComputer-aided Civil and Infrastructure Engineering, 26(2): 129-145.

79.   Kang, S. and Ouyang, Y. (2011) "The traveling purchaser problem with stochastic prices: Exact and approximate algorithms." European Journal of Operational Research, 209(3): 265–272.

80.  Cui T., Ouyang, Y. and Shen, Z.J. (2010) “Reliable facility location under the risk of disruptions Operations Research, 58(4): 998-1011.

81.   Nourbakhsh, S.M. and Ouyang, Y. (2010) “Optimal fueling strategies for locomotive fleets in railroad networks.” Transportation Research Part B, 44: 1104–1114.

82.   Li, X. and Ouyang, Y. (2010) "A continuum approximation approach to reliable facility location design under correlated probabilistic disruptions." Transportation Research Part B, 44(4): 535-548.

83.   Li, X., Peng, F. and Ouyang, Y. (2010) “Measurement and estimation of traffic oscillation propertiesTransportation Research Part B, 44(1): 1-14.

84.   Ouyang, Y. and Li, X. (2010) “The bullwhip effect in supply chain networksEuropean Journal of Operational Research, 201(3): 799–810.

85.   Tegge, R.A. and Ouyang, Y. (2008) “Correcting erroneous crash locations in transportation safety analysis Accident Analysis and Prevention, 41(1): 202-209.

86.   Lai, Y.C., Ouyang, Y. and Barkan, C. (2008) “A rolling horizon model to optimize the aerodynamic efficiency of intermodal freight trains with uncertaintyTransportation Science, 42(4): 466-477.

87.   Ouyang, Y., Li, X., Lai, Y.C., Barkan, C. and Kawprasert, A. (2009) “Optimal locations of railroad wayside defect detection installationsComputer-aided Civil and Infrastructure Engineering, 24(5): 309-319. (data for the hypothetical examples)

88.  Kang, S., Medina J.C. and Ouyang, Y. (2008) “Optimal operations of transportation fleet for unloading activities at container ports." Transportation Research Part B, 42(10): 970-984.

89.   Ouyang, Y. (2007) “Design of vehicle routing zones for large-scale distribution systemsTransportation Research Part B, 41(10): 1079-1093.

90.   Ouyang, Y. (2007) “The effect of information sharing on supply chain stability and the bullwhip effectEuropean Journal of Operational Research, 182(3): 1107-1121.

91.    Ouyang, Y. (2007) “Pavement resurfacing planning on highway networks: A parametric policy iteration approachJournal of Infrastructure Systems (ASCE), 13(1): 65-71.

92.   Ouyang, Y. and Daganzo, C.F.  (2006) “Characterization of the bullwhip effect in linear, time-invariant supply chains: some formulae and testsManagement Science, 52(10): 1544-1556.

93.   Ouyang, Y. and Daganzo, C.F. (2006) “Counteracting the bullwhip effect with decentralized negotiations and advance demand informationPhysica A, 363(1): 14-23.

94.   Ouyang, Y. and Daganzo, C.F. (2008) “Robust tests for the bullwhip effect in supply chains with stochastic dynamicsEuropean Journal of Operational Research, 185(1): 340-353.

95.   Ouyang, Y. and Madanat, S. (2006) “An analytical solution for the finite-horizon pavement resurfacing planning problem." Transportation Research Part B, 40(9): 767-778.

96.   Ouyang, Y. and Daganzo, C.F. (2006) “Discretization and validation of the continuum approximation scheme for terminal system designTransportation Science, 40(1): 89-98.

97.   Ouyang, Y. and Madanat, S. (2004) “Optimal scheduling of rehabilitation activities for multiple pavement facilities: Exact and approximate solutionsTransportation Research Part A, 38(5): 347-365.

98.   Ouyang, Y., Shankar, V. and Yamamoto T. (2002) “Modeling the simultaneity in injury causation in multi-vehicle collisionsTransportation Research Record, 1784: 143-152.

99.   Ye, L. and Ouyang, Y. (2000) “Dual seismic structure system and its parametric analysisEngineering Mechanics (in Chinese) 17(2): 22-29.   

100.     Ye, L., Kang, S., Ouyang, Y. and Zeng, Y. (2000) “Dual seismic resistant structure system.” Building Structure (in Chinese) 30(4): 58-60.  

101.    Yuan, S., Kong, L. and Ouyang, Y. (1998) “An artificial intelligent tutor of the method of sections in structural mechanics.” Huanan Engineering Education and Research (in Chinese), (4): 60-65.


bullet Book Chapters

1.       (invited) Wu, O. and Ouyang, Y. (2017). "Supply chain design and optimization for renewable energy resources.” In Advances and Trends in Optimization with Engineering Applications (Terlaky T., Anjos M.F., & Ahmed S. eds.), 457-468. MOS-SIAM Series on Optimization.

2.       Bai, Y. and Ouyang, Y. (2015). “Biofuel supply chain design and the impacts on transportation systems and infrastructure.” In Handbook of Bioenergy: Bioenergy Supply Chain - Models and Applications (Eksioglu, S.D., Rebennack, S. & Pardalos, P. eds.), 253-266. Series: Energy Systems. Springer International Publishing.

3.    (invited) Lim, M. and Ouyang, Y. (2016). “Biofuel Supply Chain Network Design and Operations.” In Environmentally Responsible Supply Chains (Atasu A. ed.), Vol. 3, 143-162. Springer Series in Supply Chain Management, Springer International Publishing.

4.    (invited) Kang, S., Φnal, H., Ouyang, Y., Scheffran, J. and Tursun, D. (2010) “Optimizing the biofuels infrastructure: Transportation networks and biorefinery locations in Illinois.” In: Handbook of Bioenergy Economics and Policy (Khanna M., Scheffran, J., & Zilberman, D. eds.), Vol. 33. 151-173. Series: Natural Resource Management and Policy, Springer Academic Publishers.

5.    (invited) Ouyang, Y. and Daganzo, C.F. (2011). “Robust stability analysis of decentralized supply chains.” In: Planning Production and Inventories in the Extended Enterprise (Kempf, K.G., Keskinocak, P., & Uzsoy, R. eds.), Vol. 151, 537-564. International Series in Operations Research and Management Science, Springer Academic Publishers.

6.    (invited) Ouyang, Y., Lago, A., and Daganzo, C.F. (2006). “Taming the bullwhip effect: from traffic to supply chains.” In: Bullwhip Effect in Supply Chains: A Review of Methods, Components, and Cases (Carranza-Torres, O.A. & Villegas-Morΰn, F.A. eds.), Palgrave-MacMilan Series.

bullet Magazine Articles

1.    Ouyang, Y. (2013) "Improving railroad track maintenance scheduling with operations research techniques." TR News, Transportation Research Board, 286: 56-57, May-June 2013.

2.    Ouyang, Y., Li, X., Lai, Y.C., Barkan, C. and Kawprasert, A., “Optimizing Installation Locations for Railroad Wayside Defect Detection Facilities.” Technology Digest, Association of American Railroads, TD-08-023, June 2008.

bullet Software

1.    Chen, X., Wang, X. and Ouyang, Y. (2013) A Food-Energy-Environment Land Use Competition Game. University of Illinois at Urbana-Champaign.

2.    Aktemur, B.  and Ouyang, Y. (2011) An Internet-based Driving-in-Queue Game. University of Illinois at Urbana-Champaign.

3.    Pekcan, O., Aktemur, B. and Ouyang, Y. (2008) A New Internet-based Supply Chain Game. University of Illinois at Urbana-Champaign.

4.    Li, X. and Ouyang Y. (2007) Railroad Wayside Detector Location Solver (RWDLS), V1.0. University of Illinois at Urbana-Champaign.

5.    Yuan, S., Ouyang, Y. and Kong, L. (2000) Structural Mechanics Solver, V1.5 (in Chinese). Higher Education Press, Beijing, China.

[A number of other proprietary decision-support tools developed specifically for our sponsors.]



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