MaurerRW82'

@article{DBLP:journals/iandc/MaurerRW82,
  author    = {Hermann A. Maurer and
               Grzegorz Rozenberg and
               Emo Welzl},
  title     = {Using String Languages to Describe Picture Languages},
  journal   = {Information and Control},
  volume    = {54},
  number    = {3},
  year      = {1982},
  pages     = {155-185},
  ee        = {http://dx.doi.org/10.1016/S0019-9958(82)80020-X},
  bibsource = {DBLP, http://dblp.uni-trier.de}
}