1. On Convergence of the PIES Algorithm for Computing Equilibria
2. Jonathan F. Bard, and James E. Falk . Computing Equilibria Via Nonconvex Programming, Serial T-386, Institute for Management Science and Engineering, The George Washington University, Washington, D.C., 1978 .
3. An explicit solution to the multi-level programming problem
4. James E. Falk, and Garth P. McCormick . Mathematical Structure of the International Coal Trade Model, Energy Information Administration, U.S. Department of Energy, September1982 .