Volume 18, Issue 2, November 1999, Pages 88-90
M. Majid Heravi; Dariush Ajami; A.Masoud Noushabadi
Volume 18, Issue 1, June 1999, Pages 36-39
Hashem Sharghi; Khodabakhsh Niknam
Volume 18, Issue 1, June 1999, Pages 40-43
Sadreddin Hosseini; Timothy Su