Umesh Deshpande Arobinda Gupta Anupam Basu Task assignment with imprecise information for real-time operation in a supply chain. 101-117 2004 5 Appl. Soft Comput. 1 http://dx.doi.org/10.1016/j.asoc.2004.06.001 db/journals/asc/asc5.html#DeshpandeGB04