Volume 11, Issue 2, May 1998, Pages 83-92
G. Soleimani; Esmaeil Khoshravan-Azar
Volume 11, Issue 2, May 1998, Pages 101-108
S. Shaikhzadeh Najar; Mohammad Haghighat- Kish
Volume 10, Issue 3, August 1997, Pages 163-172
G. Soleimani; Esmaeil Khoshravan-Azar