@InProceedings{carlson-onyshkevych-okurowski:1993:TIPSTER93,
  author    = {Lynn Carlson  and  Boyan Onyshkevych  and  Mary Ellen Okurowski},
  title     = {CORPORA AND DATA PREPARATION FOR INFORMATION EXTRACTION},
  booktitle = {Proceedings of the TIPSTER Text Program: Phase I},
  month     = {September},
  year      = {1993},
  address   = {Fredericksburg, Virginia, USA},
  publisher = {Association for Computational Linguistics},
  pages     = {135--139},
  url       = {http://www.aclweb.org/anthology/X93-1014},
  doi       = {10.3115/1119149.1119166}
}