On Stochastic Scheduling with In-Tree Precedence Constraints.

Christos H. Papadimitriou John N. Tsitsiklis On Stochastic Scheduling with In-Tree Precedence Constraints. 1-6 1987 16 SIAM J. Comput. 1 db/journals/siamcomp/siamcomp16.html#PapadimitriouT87