@article{
  author = {Imanparast, Mahdi, Darabi, Hamid},
  title = {A Recursive Formula for the Number of Fuzzy
Subgroups of Finite Cyclic Groups},
  journal = {Journal of Advances in Computer Research},
  year = {2013},
  volume = {4},
  number = {1},
  pages = {55-63},
  doi = {}
}