Culik78'

BibTeX

@article{DBLP:journals/acta/Culik78,
  author    = {Karel Culik II},
  title     = {The Ultimate Equivalence Problem for DOL Systems},
  journal   = {Acta Inf.},
  volume    = {10},
  year      = {1978},
  pages     = {79-84},
  bibsource = {DBLP, http://dblp.uni-trier.de}
}