@article{
  author = {Barkhoda, Sayed Wafa, Sheikhi, Hemmat, mohammadi, sudabeh},
  title = {Improving imperialist competitive algorithm for solving the nodes placement problem in three-dimensional grid wireless sensor networks },
  journal = {Journal of Information and Communication Technology},
  year = {2020},
  volume = {12},
  number = {45},
  pages = {201-212},
  doi = {}
}