A periodic review inventory model involving variable lead time with a service level constraint. - Liang-Yuh Ouyang; Bor-Ren Chuang (Int. J. Syst. Sci., 2000)

A note on periodic review inventory model with controllable setup cost and lead time. - Bor-Ren Chuang; Liang-Yuh Ouyang; Kai-Wayne Chuang (Comput. Oper. Res., 2004)

Effective investment to reduce lost-sales rate in a periodic review inventory model. - Liang-Yuh Ouyang; Bor-Ren Chuang; Yu-Jen Lin (OR Spectr., 2007)