Conditional covering: Greedy heuristics and computational results. - Sohail S. Chaudhry; I. Douglas Moon; S. Thomas McCormick (Comput. Oper. Res., 1987)

On eliminating vertices from a tree. - I. Douglas Moon (Comput. Oper. Res., 1988)

Maximin Center of Pendant Vertices in a Tree Network. - I. Douglas Moon (Transp. Sci., 1989)

Facility location on a tree with maximum distance constraints. - I. Douglas Moon; Lee Papayanopoulos (Comput. Oper. Res., 1995)