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1مؤتمر
المؤلفون: HOWARD, J A, JOHNSON, B W, HANSEN, N G, BANNISTER, H D, LILLEY, A A, CARR, J R M, MITCHELL, R L
المصدر: ICE Proceedings; May1963, Vol. 25 Issue 1, p67-75, 9p
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2مؤتمر
المؤلفون: ARNOLD, H K, BENNETT, N A, BALLARD, W E, WEBB, W H, STANBRIDGE, V E, CARR, J R M, PORTER, F C
المصدر: ICE Proceedings; Feb1963, Vol. 24 Issue 2, p291-295, 5p