Volume 3, Issue 3, September 2001, Pages 117-121
M. Mahdizadeh; P. Pasbakhsh; G. Behzadi
Volume 2, Issue 1, April 2000, Pages 45-51
H. Hagh Doust Yazdi; G. Behzadi; P. Pasbakhsh; F. Zafari Zangeneh