@article{
  author = {Assadian, F., Bandarchian, F., Ghasemi, GH.},
  title = {Ab initio study & Density functional investigational of Adenine & Thymine; Comparison of primitive Gaussian and NBO calculation},
  journal = {Journal of Physical & Theoretical Chemistry},
  year = {2004},
  volume = {1},
  number = {2},
  pages = {33-44},
  doi = {}
}