Hierarchical Production Planning: A Single Stage System. - Gabriel R. Bitran; Elizabeth A. Haas; Arnoldo C. Hax (Oper. Res., 1981)

Hierarchical Production Planning: A Two-Stage System. - Gabriel R. Bitran; Elizabeth A. Haas; Arnoldo C. Hax (Oper. Res., 1982)

Production Planning of Style Goods with High Setup Costs and Forecast Revisions. - Gabriel R. Bitran; Elizabeth A. Haas; Hirofumi Matsuo (Oper. Res., 1986)