@ARTICLE{1999-IEEETKDE-Han,
  AUTHOR = {Han, J. and Fu, Y.},
  TITLE = {Mining Multiple-Level Association Rules in Large Databases},
  JOURNAL = {IEEE Transactions on Knowledge and Data Engineering},
  VOLUME = {11},
  NUMBER = {5},
  YEAR = {1999},
  PAGES = {798 - 804}
}