@article{Croft93,
  title = {Knowledge-Based and Statistical Approaches to Text Retrieval},
  author = {W. Bruce Croft},
  year = {1993},
  url = {http://csdl.computer.org/comp/mags/ex/1993/02/x2008abs.htm},
  tags = {rule-based, systematic-approach},
  researchr = {https://researchr.org/publication/Croft93},
  cites = {0},
  citedby = {0},
  journal = {IEEE Intelligent Systems},
  volume = {8},
  number = {2},
  pages = {8-12},
}