Volume 34, Issue 1, 2011, Pages 53-76
D. W. Bishay; E. Y. Backheet; Y. G. Gouda; S. M. Moustafa
Volume 26, Issue 1, June 2003, Pages 49-54
A. M. A. Abd El-Mawla; E. Y. Backheet; N. A. El-Emary
Volume 24, Issue 2, December 2001, Pages 173-199
N. A. El-Emary; A. A. Khalifa; E. Y. Backheet; W. M. Abdel-Mageed
Volume 24, Issue 1, June 2001, Pages 1-6
E. Y. Backheet
Volume 24, Issue 1, June 2001, Pages 21-27
H. M. Sayed; E. Y. Backheet; A. S. Ahmed
Volume 19, Issue 1, 1996, Pages 21-34
E. Y. Backheet
Volume 13, Issue 1, June 1990, Pages 9-24
E. Y. Backheet
Volume 12, Issue 2, December 1989, Pages 195-212
S. M. El-Sayyad; A. M. Abdel-Baky; E. Y. Backheet; K. W. Glombitza
Volume 11, Issue 2, December 1988, Pages 165-175
S. M. El-Sayyad; A. M. Abdel-Baky; E. Y. Backheet; K. W. Glombitza