Link  bibtex   

@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}
}