@article{
  author = {Abolfathi, Eynallah},
  title = {Electronic effects at 2 and 7 α–position of divalent unsaturated seven membered ring R2C6H6M (M=C, Si, Ge, Sn, Pb)},
  journal = {Journal of Physical & Theoretical Chemistry},
  year = {2016},
  volume = {13},
  number = {2},
  pages = {179-184},
  doi = {}
}