@article{rahil_1999, 
  title={ACCURACY OF THE CONVERGENT PHOTOGRAPHY}, 
  volume={22}, 
  DOI={10.21608/erjm.1999.72450}, 
  publisher={Egypts Presidential Specialized Council for Education and Scientific Research}, 
  author={Rahil, Abo El -Hassan M.}, 
  year={1999}, 
  month={Oct}
  }