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2. and ?Penetration of Shaped Charge Jets into Water?, Proceedings of 12th International Symposium on Ballistics, Vol. II, (1990), pp. 30-40.
3. ?Transverse Shaped Charges?, Proceedings of 8th International Symposium on Ballistics, Vol. VII pp. 39-47.
4. Penetration Cutoff Velocities of Shaped Charge Jets