1) Phillips, J.W. and F.B. Crowley III : On the theory of pulse propagation in curved beams, Jour. of Sound and Vibration, Vol. 24, No. 2, pp. 247-258, 1972.
2) Ranganath, S. : Normal impact of an infinite elastic beam by a semi-infinite elastic rod, Jour. of Applied Mechanics, Vol. 38, pp. 455-460, 1971.
3) Lee, J.P. : Elastic waves produced by longitudinal impact on a system with symmetrically branched rods, Int. J. Solids Structures, Vol. 8, pp. 699-707, 1972.
4) Mandel, J.A., R.K. Mathur, and Y.C. Chang : Stress waves at rigid joint, Proc. of ASCE, Vol. 97, No. EM. 4, pp. 1173-1185, 1971.
5) Abramson, H.N., H.J. Plass, and E.A. Ripperger : Advances in Applied Mechanics 5. Stress wave propagation in rods and beams, Accademic Press, pp. 162-475. 1958.