@inproceedings{DBLP:conf/stoc/BealsNT95,
  author    = {Robert Beals and
               Tetsuro Nishino and
               Keisuke Tanaka},
  title     = {More on the complexity of negation-limited circuits},
  booktitle = {STOC},
  year      = {1995},
  pages     = {585-595},
  ee        = {http://doi.acm.org/10.1145/225058.225276},
  crossref  = {DBLP:conf/stoc/STOC27},
  bibsource = {DBLP, http://dblp.uni-trier.de}
}

@proceedings{DBLP:conf/stoc/STOC27,
  editor    = {Frank Thomson Leighton and
               Allan Borodin},
  title     = {Proceedings of the Twenty-Seventh Annual ACM Symposium on
               Theory of Computing, 29 May-1 June 1995, Las Vegas, Nevada,
               USA},
  booktitle = {STOC},
  publisher = {ACM},
  year      = {1995},
  isbn      = {0-89791-718-9},
  bibsource = {DBLP, http://dblp.uni-trier.de}
}