@article{DBLP:journals/ipl/Kinnersley92,
  author    = {Nancy G. Kinnersley},
  title     = {The Vertex Separation Number of a Graph equals its Path-Width},
  journal   = {Inf. Process. Lett.},
  volume    = {42},
  number    = {6},
  year      = {1992},
  pages     = {345-350},
  ee        = {http://dx.doi.org/10.1016/0020-0190(92)90234-M},
  bibsource = {DBLP, http://dblp.uni-trier.de}
}