"A Fast Scaling Algorithm for Minimizing Separable Convex Functions Subject to Chain Constraints."

Ahuja, Ravindra and James B. Orlin. Operations Research Vol. 49, No. 5 (2001): 784-789.

"Inverse Optimization."

Ahuja, Ravindra K. and James B. Orlin. Operations Research Vol. 49, No. 5 (2001): 771-783.

"New Polynomial-Time Cycle-Canceling Algorithms for Minimum Cost Flows."

Sokkalingam, P.T., Ravindra K. Ahuja and James B. Orlin. Networks Vol. 36, (2000): 53-63.

"Optimal Rounding of Fractional, Stationary, Dynamic Flows When Flows are Instantaneous."

Fleischer, Lisa, and James B. Orlin. SIAM Journal of Discrete Mathematics Vol. 13, No. 2 (2000): 145-153.

"A Greedy Genetic Algorithm for the Quadratic Assignment Problem."

Ahuja, Ravindra K., James B. Orlin and Ashish Tiwari. Computers and Operations Research Vol. 27, No. 10 (2000): 917-934.

"Very large scale neighborhood search."

Ahuja, Ravindra K., James B. Orlin and Dushyant Sharma. International Transactions in Operations Research Vol. 7, No. 4-5 (2000): 301-317.