@article{apte94reuters,
  author = {Chidanand Apt\'{e} and Fred Damerau and Sholom M. Weiss},
  title = {Automated learning of decision rules for text categorization},
  journal = {ACM Transactions on Information Systems},
  publisher = {ACM},
  year = {1994},
  volume = {12},
  number = {3},
  pages = {233--251},
  url = {http://portal.acm.org/citation.cfm?id=183422.183423},
  doi = {http://doi.acm.org/10.1145/183422.183423}
}

@article{debole05reutersanalysis,
  author = {Franca Debole and Fabrizio Sebastiani},
  title = {An Analysis of the Relative Hardness of {R}euters-21578 Subsets},
  journal = {Journal of the American Society for Information Science and},
  year = {2004},
  volume = {56},
  number = {6},
  pages = {584--596},
  url = {http://faure.isti.cnr.it/~fabrizio/Publications/JASIST05.pdf}
}

@techreport{francis79browncorpus,
  author = {W. N. Francis and H. Kucera},
  title = {Brown Corpus Manual},
  year = {1979},
  url = {http://icame.uib.no/brown/bcm.html}
}

@inproceedings{hayes90construe,
  author = {Philip J. Hayes and Steven P. Weinstein},
  title = {{CONSTRUE/TIS}: A System for Content-Based Indexing of a Database of News Stories},
  booktitle = {Proceedings of the 2nd Conference on Innovative Applications of Artificial Intelligence (IAAI-90), May 1-3, 1990, Washington, DC, USA},
  publisher = {AAAI Press, Chicago, IL, USA},
  year = {1991},
  pages = {49--64},
  url = {http://portal.acm.org/citation.cfm?id=653070}
}

@inproceedings{hersh94ohsu,
  author = {W. R. Hersh and C. Buckley and T. J. Leone and D. H. Hickam},
  title = {Ohsumed: An {I}nteractive {R}etrieval {E}vealuation and new large {T}est {C}ollection for {R}esearch},
  booktitle = {{Proceedings of the 17th Annual International ACM SIGIR Conference on Research and Development in Informaion Retrieval}},
  publisher = {ACM Press},
  year = {1994}
}

@book{kucera67analysis,
  author = {Henry Kucera and W. Nelson Francis},
  title = {Computational Analysis of Present-Day {A}merican {E}nglish},
  publisher = {Brown University Press},
  year = {1967}
}