TY - JOUR AU - Liang-Yuh Ouyang AU - Bor-Ren Chuang TI - Stochastic Inventory Models Involving Variable Lead Time With a Service Level Constraint JO - Yugoslav journal of operations research PY - 2000 SP - 81 VL - 10 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/YJOR_2000_10_1_a7/ LA - en ID - YJOR_2000_10_1_a7 ER -