@INPROCEEDINGS{1995-VLDB-Han,
  TITLE = {Discovery of Multiple-Level Association Rules from Large Databases},
  BOOKTITLE = {Proceedings of the 21th International Conference on Very Large Data Bases, VLDB'95},
  AUTHOR = {Han, J. and Fu, Y.},
  PAGES = {420-431},
  ADDRESS = {Zurich, Switzerland}, 
  YEAR = {1995}
}