A discrete-time approximation technique for the time-cost trade-off in PERT networksAmir Azaron, Masatoshi Sakawa, Reza Tavakkoli-Moghaddam and Nima SafaeiRAIRO-Oper. Res., 41 1 (2007) 61-81DOI: https://doi.org/10.1051/ro:2007005
