@article{
  author = {Akbari, Ali, Farsi, Hassan, Mohammadzadeh, Sajad},
  title = {Social Groups Detection in Crowd by Using Automatic Fuzzy Clustering with PSO},
  journal = {Journal of Information Systems and Telecommunication (JIST) },
  year = {2020},
  volume = {7},
  number = {27},
  pages = {215-224},
  doi = {10.7508/jist.2019.03.006}
}