Volume 42.1, Issue 83, October 1999, Pages 330-336
K.K. Metwelly; Iman E. El-Bawab
Volume 42.1, Issue 83, October 1999, Pages 353-370
A. El-Din Zain; M.T. Mousa
Volume 36.2, Issue 72, January 1997, Pages 286-296
A. EL-DIN ZAIN; M.T. MOUSA