@article{
  author = {Safdarian, S., Yahyaabadi, A., Hortamani, A.},
  title = {Analysis of the Long-term Effects of Human Capital and Research and Development on Iran’s Economic Growth, 1967- 2007},
  journal = {Bi-quarterly Journal of  development economics and planning},
  year = {2013},
  volume = {1},
  number = {2},
  pages = {117-131},
  doi = {}
}