@article{
  author = {Asadi-Lari, Mohammad-Saviz, Abbas-Ghorbani, Maryam, Tavakkoli-Mogahddam, Reza},
  title = {A multi-objective mathematical model in an educational system with online and face-to-face learning courses during the Coronavirus pandemic},
  journal = {Journal of New Researches in Mathematics},
  year = {2023},
  volume = {9},
  issue = {2},
  pages = {49-68},
  doi = {10.30495/jnrm.2022.70606.2351},
  url = {https://sanad.iau.ir/fa/Article/798324}
}