Volume 19.1, Issue 37, September 1987, Pages 185-188
T.Y. ABDEL MOTELIB; B. SALEM; K. EL-ZANATY; M. SHAHATA; LM. SOKKAR
Volume 14.1, Issue 27, January 1985, Pages 87-93
A. NAFADY; A. BRAHIM; M. SHAHATA
Volume 10.2, Issue 20, January 1983, Pages 178-180
S. MOUSA; A. BAYOUMI; M. SHAHATA; A. IBRAHIM
Volume 10.1, Issue 19, June 1982, Pages 187-192
S. MOUSA; A. IBRAHIM; M. SHAHATA