@article{ DBLP:journals/ipl/RanjanPG98, author = {Desh Ranjan and Enrico Pontelli and Gopal Gupta}, title = {Efficient Algorithms for the Temporal Precedence Problem}, journal = {Inf. Process. Lett.}, pages = {71-81}, volume = {68}, number = {2}, ee = {http://dx.doi.org/10.1016/S0020-0190(98)00141-0} , year = {1998} }