@article{
  author = {Tourani, Mahdi},
  title = {Improvement of Firefly Algorithm using Particle Swarm Optimization and Gravitational Search Algorithm},
  journal = {Journal of Information Systems and Telecommunication (JIST) },
  year = {2021},
  volume = {9},
  number = {34},
  pages = {123-130},
  doi = {10.52547/jist.9.34.123}
}