Ling, Shi, and Cheng Xue Guang. “The Two-Machine Flow-Shop Scheduling Problem With a Single Server and Unit Server Times”. Journal of Informatics and Mathematical Sciences 4, no. 1 (April 1, 2012): 123–127. Accessed April 29, 2024. http://www.rgnpublications.com/journals/index.php/jims/article/view/74.