%0 Journal Article %A Chiu, Huan Neng %T A good approximation of the inventory level in a $(Q, r)$ perishable inventory system %J RAIRO - Operations Research - Recherche Opérationnelle %D 1999 %P 29-45 %V 33 %N 1 %I EDP-Sciences %U http://archive.numdam.org/item/RO_1999__33_1_29_0/ %G en %F RO_1999__33_1_29_0