HowardS93'

BibTeX

@article{DBLP:journals/ndjfl/HowardS93,
  author    = {Paul E. Howard and
               Jeffrey Solski},
  title     = {The Strenght of the Delta-system Lemma},
  journal   = {Notre Dame Journal of Formal Logic},
  volume    = {34},
  number    = {1},
  year      = {1993},
  pages     = {100-106},
  bibsource = {DBLP, http://dblp.uni-trier.de}
}