Volume 12.1, Issue 23, May 1984, Pages 84-88
I.A. EL-KADY; M.B. MAZEN; I.S.A. ABD ALLAH; A.H. ELYAS
Volume 11.2, Issue 22, January 1984, Pages 59-66
M.B. MAZEN; I.A. EL-KADY; A.A. AMMER; A.H. ELYAS