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

المؤلفون: BANNISTER, H D

المصدر: ICE Proceedings; May1962, Vol. 22 Issue 1, p77-94, 18p