Volume 17, Issue 1, July 1994, Pages 73-79
S. A. El-Harras; S. Shawky; E. Hafez; S. Shaker
Volume 11, Issue 1, June 1988, Pages 29-49
S. Shawky; T. H. El-Faham
Volume 7, Issue 1, June 1984, Pages 173-189
M. S. Mesiha; S. Shawky
Volume 1, Issue 1, 1978, Pages 53-72
A. Sina; S. A. Ibrahim; H. A. El-Sourady; S. Shawky
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