@INPROCEEDINGS{2010-EDM-RARE,
  TITLE = {{Mining Rare Association Rules from e-Learning Data}},
  BOOKTITLE = {Proceedings of the 3rd International Conference on Educational Data Mining, EDM 2010},
  AUTHOR = {Romero, C. and Luna, J. M. and Romero, J. R. and Ventura, S.},
  PAGES = {171--180},
  ADDRESS = {Pittsburgh, PA, USA}, 
  YEAR = {2010}
}