@ARTICLE{Cohen:60,
  author = {J. Cohen},
  title = {A coefficient of agreement for nominal scales},
  journal = {Educational and Psychological Measurement},
  year = {1960},
  volume = {20},
  pages = {37--46},
  owner = {Michael},
  timestamp = {2009.01.21}
}

@BOOK{Agresti:2013,
  title = {Categorical Data Analysis},
  publisher = {Wiley-Interscience [John Wiley \& Sons]},
  year = {2013},
  author = {Agresti, Alan},
  series = {Wiley Series in Probability and Statistics},
  address = {New York},
  edition = {Third},
  isbn = {978-0-470-46363-5},
  lccn = {QA278.A353 2013}
}
