%0 Journal Article %A Kamburowski, Jerzy %T Two-point approximations for activity times in PERT networks %J RAIRO - Operations Research - Recherche Opérationnelle %D 1985 %P 301-313 %V 19 %N 3 %I EDP-Sciences %U http://www.numdam.org/item/RO_1985__19_3_301_0/ %G en %F RO_1985__19_3_301_0