Nagao, Hidehiro, Katsuhiko Takahashi, Katsumi Morikawa, and Daisuke Hirotani. 2011. “AN INVENTORY CONTROL POLICY WITH TRACKING INFORMATION FOR DUAL-CHANNEL SUPPLY CHAINS”. Brazilian Journal of Operations & Production Management 8 (November):121-46. https://bjopm.org.br/bjopm/article/view/V8N2A7.