@article{
  author = {باقرزاده, علی, کمیجانی, اکبر},
  title = {Analysis of the role of research and development and the volume of imports on agricultural total factor productivity in Iran},
  journal = {Applied Economics},
  year = {2011},
  volume = {2},
  number = {5},
  pages = {1-18},
  doi = {}
}