PodewskiS76'

BibTeX

@article{DBLP:journals/jct/PodewskiS76,
  author    = {Klaus-Peter Podewski and
               Karsten Steffens},
  title     = {Injective choice functions for countable families},
  journal   = {J. Comb. Theory, Ser. B},
  volume    = {21},
  number    = {1},
  year      = {1976},
  pages     = {40-46},
  ee        = {http://dx.doi.org/10.1016/0095-8956(76)90025-3},
  bibsource = {DBLP, http://dblp.uni-trier.de}
}