Prior53'

BibTeX

@article{DBLP:journals/jsyml/Prior53,
  author    = {A. N. Prior},
  title     = {On Propositions Neither Necessary Nor Impossible},
  journal   = {J. Symb. Log.},
  volume    = {18},
  number    = {2},
  year      = {1953},
  pages     = {105-108},
  bibsource = {DBLP, http://dblp.uni-trier.de}
}