@article{
  author = {Tohidi, Ghasem, Razavyan, Shabnam},
  title = {An L1-norm method for generating all of efficient solutions of multi-objective integer linear programming problem},
  journal = {Journal of Industrial Engineering International},
  year = {2012},
  volume = {8},
  number = {1},
  pages = {0-0},
  doi = {}
}