@article{
  author = {taghavizad, razieh, majd, ahmad, nazarian, hasan},
  title = {Study of dependency of developmental stages of pollens and their pollination by honeybees},
  journal = {Iranian Journal of Biological Sciences},
  year = {2009},
  volume = {4},
  number = {3},
  pages = {23-33},
  doi = {}
}