Volume 24, Issue 2, June 1999, Pages 106-115
M. S. Mohamed; A. M. Tolba
Volume 19, Issue 4, December 1994, Pages 75-91
A. El-Shami; H. Niemann; A. Tolba
Volume 18, Issue 4, December 1993, Pages 39-48
A. Tolba; S. A. Sitteen
Volume 10, Issue 1, June 1985, Pages 57-66
M. M. Awad; H. M. Mansour; A. B. Tolba
Volume 10, Issue 1, June 1985, Pages 67-82
M. M. Awad; H. Mansour; A. B. Tolba