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3. Christensen, D. E., and Prater, J. "Investigation of a Multiple Rocket Launch System," Technical Report RL84-1, U. S. Army Missile Command, Redstone Arsenal, AL, October 1983.
4. Cochran, J. E., Jr. "Investigation of Factors which Contribute to Mallaunch of Free Rockets," Technical Report RL-CR-76-4, U. S. Army Command, Redstone Arsenal,AL,1976.