Shanthikumar, J. George, and David D. Yao. Optimal Server Allocation in a System of Multi-Server Stations. Management Science, 1987, 33 (9): 1173-1180.

Yao, David D., and J. A. Buzacott. Modeling a Class of Flexible Manufacturing Systems with Reversible Routing. Operations Research, 1987, 35 (1): 87-93.

Shanthikumar, J. George, and David D. Yao. Stochastic Monotonicity of the Queue Lengths in Closed Queueing Networks. Operations Research, 1987, 35 (4): 583-588.

Yao, David D.. Majorization and arrangement orderings in open queueing networks. Annals of Operations Research, 1987, 9 (1): 531–543.

Yao, David D., and J. George Shanthikumar. The Optimal Input Rates To A System Of Manufacturing Cells. INFOR, 1987, 25 (1): 57-65.

Yao, David D., and Sung Chul Kim. Some order relations in closed networks of queues with multiserver stations. Naval Research Logistics, 1987, 34 (1): 53-66.

Dong, Z., and Jing-Sheng Song. A Note on Continuous-time Markov Decision Processes with Undiscounted Cost Criterion. Science Bulletin, 1987.

David D. Yao. Convexity properties of the overflow in an ordered-entry system with heterogeneous servers. Operations Research Letters, 1986, 5 (3): 145-147.

Shanthikumar, J. George, and David D. Yao. The preservation of likelihood ratio ordering under convolution. Stochastic Processes and Their Applications, 1986, 23 (2): 259-267.

Buzacott, J. A., and David D. Yao. Flexible Manufacturing Systems: A Review of Analytical Models. Management Science, 1986, 32 (7): 890-905.