Volume 15, Issue 1, November and December 2006, Pages 21-32
M. Afraei; F. Parafkandeh; A. Janbaz
Volume 9, Issue 1, March and April 1999, Pages 1-14
M. Afraei; F. Laloei
Volume 9, Issue 3, March and April 1999, Pages 21-34
M. Afraei; H. Fazli; M. Moslemi