[1] Pericak-Spector K A, Spector S J. Nonuniqueness for a hyperbolic system: cavitation in nonlinear elasto-
dynamics. Arch Rational Mech Anal, 1988, 101: 293–317

[2] Ball J M. Discontinuous equilibrium solutions and cavitation in nonlinear elasticity. Phil Trans R Soc London A, 1982, 306: 557–611

[3] Horgan C O, Polignone D A. Cavitation in nonlinearly elastic solids: a review. Appl Mech Rev, 1995, 48(8): 471–476

[4] Pericak-Spector K A, Spector S J. Dynamic cavitation with shocks in nonlinear elasticity. Royal Society
(Edinburgh), Proceedings, Section A - Mathematics, 1997, 127: 837–857

[5] Dafermos C M. Hyperbolic systems of conservation laws//Ball J M, ed. Systems of Nonlinear Partial
Differential Equations. Dordrecht: D Reidel, 1983: 25–70

[6] Iooss G, Joseph D D. Elementary Stability and Bifurcation Theory. Undergraduate Texts in Mathematics.
New York: Springer-Verlag, 1980