@ARTICLE{2013-ICAE-MO,
   author={Olmo, J. L. and Luna, J. M. and Romero, J. R. and Ventura, S.},
   title={Mining association rules with single and multi-objective grammar guided ant programming},
   journal={Integrated Computer Aided Engineering},
   volume = {20},
   number = {3},
   year={2013},
   pages={217-234},
}