Volume 6, Issue 2, June 2010, Pages 97-103
Mircea V. Diudea; Katalin Nagy; Monica L. Pop; F. Gholami-Nezhaad; A. R. Ashrafi
Volume 4, Issue 1, December 2008, Pages 35-38
A. R. Ashrafi; F. Gholami-Nezhaad