@article{DBLP:journals/jlp/Nardi89,
  author    = {Daniele Nardi},
  title     = {Formal Synthesis of a Unification Algorithm by the Deductive-Tableau
               Method},
  journal   = {J. Log. Program.},
  volume    = {7},
  number    = {1},
  year      = {1989},
  pages     = {1-43},
  ee        = {http://dx.doi.org/10.1016/0743-1066(89)90008-3},
  bibsource = {DBLP, http://dblp.uni-trier.de}
}