Volume 15, Issue 2, March 2005, Pages 171-176
M. A. Ibrahim; S. M. Abo El-Hadid; M. H. Meabed
Volume 15, Issue 2, March 2005, Pages 244-246
H. S. Lotfy; S. M. Abo El-Hadid
Volume 15, Issue 2, March 2005, Pages 247-251
S. M. Abo El-Hadid; H. S. Lotfy