LifschitzPV01'

@article{DBLP:journals/tocl/LifschitzPV01,
  author    = {Vladimir Lifschitz and
               David Pearce and
               Agust\'{\i}n Valverde},
  title     = {Strongly equivalent logic programs},
  journal   = {ACM Trans. Comput. Log.},
  volume    = {2},
  number    = {4},
  year      = {2001},
  pages     = {526-541},
  ee        = {http://doi.acm.org/10.1145/502166.502170},
  bibsource = {DBLP, http://dblp.uni-trier.de}
}