Vol. 20, Issue 28, October 2004, Pages 43-48
S. Jonoud; M. Vosoughi
Vol. 19, No. 24, March 2003, Pages 58-61
M. Vossoughi; I. Alemzadeh
Vol. 16, No . 16, January 2000, Pages 7-16
M. Vosoughi