Variance Algorithm for Minimization. - William C. Davidon (Comput. J., 1968)

Optimally conditioned optimization algorithms without line searches. - William C. Davidon (Math. Program., 1975)

Evaluation of Step Directions in Optimization Algorithms. - William C. Davidon; Jorge Nocedal (ACM Trans. Math. Softw., 1985)

Variable Metric Method for Minimization. - William C. Davidon (SIAM J. Optim., 1991)

On a characterization of convexity-preserving maps, Davidon's collinear scalings and Karmarkar's projective transformations. - K. A. Ariyawansa; William C. Davidon; K. D. McKennon (Math. Program., 2001)