1. Gabov, S.A., Novye zadachi matematicheskoi teorii voln (New Problems of Mathematical Theory of Waves), Moscow: Nauka, 1998.
2. Mitidieri, E. and Pokhozhaev, S.I., A priori estimates and blow-up of solutions to nonlinear partial differential equations and inequalities, Proc. Steklov Inst. Math., 2001, vol. 234, pp. 1–362.
3. Bakhvalov, N.S., Zhileikin, Ya.M., and Zabolotskaya, E.A., Sovremennye problemy fiziki. Nelineinaya teoriya zvukovykh puchkov (Contemporary Problems of Physics. Nonlinear Theory of Sound Beams), Moscow: Nauka, 1982.
4. Korpusov, M.O. and Mikhailenko, S.G., Instantaneous blow-up of classical solutions to the Cauchy problem for the Khokhlov–Zabolotskaya equation, Comput. Math. Math. Phys., 2017, vol. 57, no. 7, pp. 1167–1172.
5. Korpusov, M.O., Critical exponents of instantaneous blow-up or local solubility of non-linear equations of Sobolev type, Izv. Math., 2015, vol. 75, no. 5, pp. 955–1012.