@article{
  author = {sadrinia, Mohammadreza, Varvani, Mohsen},
  title = {The role of R&D in value creation in corporation},
  journal = { Roshd -e- Fanavari},
  year = {2008},
  volume = {4},
  number = {15},
  pages = {1-10},
  doi = {}
}