Cobham56'

BibTeX

@article{DBLP:journals/jsyml/Cobham56,
  author    = {Alan Cobham},
  title     = {Reduction to a Symmetric Predicate},
  journal   = {J. Symb. Log.},
  volume    = {21},
  number    = {1},
  year      = {1956},
  pages     = {56-59},
  bibsource = {DBLP, http://dblp.uni-trier.de}
}