The Number Served in a Queue. - Harold Greenberg; Irwin Greenberg (Oper. Res., 1966)

Letter to the Editor - Modification of the Primal-Dual Algorithm for Degenerate Problems. - Harold Greenberg (Oper. Res., 1968)

A better step-off algorithm for the knapsack problem. - Harold Greenberg; Israel Feldman (Discret. Appl. Math., 1980)

On equivalent knapsack problems. - Harold Greenberg (Discret. Appl. Math., 1986)

A new reduction method in integer programming. - Harold Greenberg (Discret. Appl. Math., 1988)

Solution to a Linear Diophantine Equation for Nonnegative Integers. - Harold Greenberg (J. Algorithms, 1988)