@article{
  author = {Alvani, Seyed mehdi, boudlaie, hasan, Gharib Gorgani, Mona},
  title = {Challenges and recommendations (guidelines) in the conceptual development of entrepreneurship },
  journal = { Roshd -e- Fanavari},
  year = {2012},
  volume = {8},
  number = {29},
  pages = {1-10},
  doi = {}
}