@article{
  author = {Dehghan, Nasibeh, Hosseini Sarghein, Siavash, Jamei, Rashid},
  title = {Comparative anatomical study of leaf and petiole in three species of pear (Pyrus L.)
in Guilan Province},
  journal = {Applied Biology},
  year = {2020},
  volume = {10},
  number = {39},
  pages = {99-110},
  doi = {}
}