An efficient one - dimensional search procedure for barrier functions. - Leon S. Lasdon; Richard L. Fox; Margery W. Ratner (Math. Program., 1973)

Design and Testing of a Generalized Reduced Gradient Code for Nonlinear Programming. - Leon S. Lasdon; Allan D. Waren; A. Jain; Margery W. Ratner (ACM Trans. Math. Softw., 1978)