@article{
  author = {Iranzadeh, Soleyman, Hosseynzadeh, Allahverdi, Barghi, Amir},
  title = {A study of relationship between strees and manager’s productivity in Tabriz},
  journal = {Journal of Instruction and Evaluation},
  year = {2008},
  volume = {1},
  number = {2},
  pages = {7-40},
  doi = {}
}