Volume 36.2, Issue 72, January 1997, Pages 175-192
A. SH. SEDDEK; TH. A. IBRAHIM; AHLAM ABDEL-HAMID; M. ABD EL-NASSER
Volume 21.2, Issue 42, May 1989, Pages 145-152
A. SHEHATA; R.S. REFAIE; TH. A. IBRAHIM
Volume 17.2, Issue 34, September 1986, Pages 214-221
A. SHEHATA; TH. A. IBRAHIM; A.A. SHAABAN
Volume 12.1, Issue 23, May 1984, Pages 182-184
A. SHEHATA; TH. A. IBRAHIM