@InProceedings{ahrenberg:1994:NODALIDA,
  author    = {Ahrenberg, Lars},
  title     = {Topological frames in sign-based grammars},
  booktitle = {Proceedings of the 9th Nordic Conference of Computational Linguistics (NODALIDA 1993)},
  month     = {June},
  year      = {1994},
  address   = {Stockholm, Sweden},
  publisher = {Department of Linguistics, Computational Linguistics, Stockholm University, Sweden},
  pages     = {9--17},
  url       = {http://www.aclweb.org/anthology/W93-0401}
}