Matula68'

BibTeX

@article{DBLP:journals/cacm/Matula68,
  author    = {David W. Matula},
  title     = {In-and-out conversions},
  journal   = {Commun. ACM},
  volume    = {11},
  number    = {1},
  year      = {1968},
  pages     = {47-50},
  ee        = {http://doi.acm.org/10.1145/362851.362887},
  bibsource = {DBLP, http://dblp.uni-trier.de}
}