1. A. P. Filippov, Vibrations of Deformable Systems (Mashinostroenie, Moscow, 1970) [in Russian].
2. M. A. Lavrent’ev and A. Yu. Ishlinskii, “Dynamic shapes of buckling of elastic systems,” Dokl. Akad. Nauk SSSR 64 (6), 779–782 (1949).
3. V. I. Malyi, “Long-wave approximation in problems of impact-induced buckling,” Izv. Akad. Nauk SSSR, Mekh. Tverd. Tela, No. 4, 138–144 (1972).
4. V. I. Malyi, “Rod buckling under a longitudinal impact. Small deflections,” Izv. Akad. Nauk SSSR, Mekh. Tverd. Tela, No. 4, 181–186 (1973).
5. V. I. Malyi, “Rod buckling under a longitudinal impact. Large deflections,” Izv. Akad. Nauk SSSR, Mekh. Tverd. Tela, No. 1, 52–61 (1975).