Hahn67'

BibTeX

@article{DBLP:journals/mst/Hahn67,
  author    = {Frank Hahn},
  title     = {A Fixed-Point Theorem},
  journal   = {Mathematical Systems Theory},
  volume    = {1},
  number    = {1},
  year      = {1967},
  pages     = {55-57},
  bibsource = {DBLP, http://dblp.uni-trier.de}
}