Ullmann66'

@article{DBLP:journals/iandc/Ullmann66,
  author    = {Julian R. Ullmann},
  title     = {Associating Parts of Patterns},
  journal   = {Information and Control},
  volume    = {9},
  number    = {6},
  year      = {1966},
  pages     = {583-601},
  ee        = {http://dx.doi.org/10.1016/S0019-9958(66)80017-7},
  bibsource = {DBLP, http://dblp.uni-trier.de}
}