Volume 20.1, Issue 39, May 1988, Pages 115-120
A. LOTFI; T. EL-KHATEIB; H. ABDEL-RAHMAN; S.H. AHMED; M. EL-TARABILI; A. AHMED
Volume 19.2, Issue 38, January 1988, Pages 90-97
H. ABDEL-RAHMAN; T. EL-KHATEIB; R.S. REFAI
Volume 15.2, Issue 30, January 1986, Pages 152-159
A. LOTFI; S. NASR; H. ABDEL-RAHMAN; H. YOUSSEF; Y. HEFNAWY; R. FARGHALLY
Volume 14.1, Issue 27, January 1985, Pages 129-134
H. ABDEL-RAHMAN; A. DARWISH; M. HAMDY
Volume 14.1, Issue 27, January 1985, Pages 135-140
Y. HEFNAWY; H. YOUSSEF; H. ABDEL-RAHMAN