@INPROCEEDINGS{1996-KDD-Ng,
  TITLE = {Maintenance of Discovered Knowledge: A Case in Multi-Level Association Rules},
  BOOKTITLE = {Proceedings of the 2nd International Conference on Knowledge Discovery and Data Mining, KDD-96},
  AUTHOR = {Cheung, D.W. and Ng, V.T.Y. and Tam, W.},
  PAGES = {307-310},
  ADDRESS = {Portland, Oregon, USA}, 
  YEAR = {1996}
}