@inproceedings{anincrementalalgorithmforageneralization,
  title = {An Incremental Algorithm for a Generalization of the Shortest-Path Problem},
  author = {G.Ramalingam and ThomasReps},
  year = {1996},
  booktitle = {Journal of Algorithms Volume 21, Issue 2, September 1996, Pages 267-305 1996 9},
  url = {https://www.sciencedirect.com/science/article/pii/S0196677496900462#!},
}