@inproceedings{abdelsalam2004mathematical,
  author = {Abdel-Salam G. Abdel-Salam and Ramadan Hamed and Ali El-Hefnawy},
  title = {Mathematical Programming Approach for Variable Selection in Discriminant Analysis: an Environmental Application},
  year = {2004},
  booktitle = {39th Annual Conference on Statistics, Computer Sciences and Operation Research},
  pages = {80--94},
  publisher = {Institute of Statistical Studies and Research, Cairo University}
}