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2. M. Allen, The Art of the Bullwhip, Mark Allen Productions, Las Vegas, 1989.
3. R. Edwards, How to Make a Whip, Cornell Maritine Press, Centerville, MD, 1997.
4. The puzzle of whip cracking—uncovered by a correlation of whip-tip kinematics with shock wave emission;Krehl;Shock Waves,1998
5. Über die Theorie des Knalls;Lummer;Schlesische Gesellschaft für vaterländische Kultur,1905