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[1] Popp K., “O negladkikh sistemakh v mekhanike”, Prikl. matem. i mekhan., 64:5 (2000), 795–804 | Zbl
[2] Andronov A. A., Vitt A. A., Khaikin S. E., Teoriya kolebanii, Nauka, M., 1981 | MR | Zbl
[3] Bulgakova G. T., Kalyakin L. A., Khasanov M. M., “Nestatsionarnye rezhimy neravnovesnoi dvukhfaznoi filtratsii”, Prikl. matem. i mekhan., 64:2 (2000), 293–298 | MR | Zbl
[4] Dobrokhotov S. Yu., Maslov V. P., “Konechnozonnye pochti periodicheskie resheniya v VKB-priblizheniyakh”, Itogi nauki i tekhn., 15, 1980, 3–94 | MR | Zbl
[5] Bourland F. J., Haberman R., “The modulated phase shift for strongly nonlinear, slowly varying and weakly damped oscillators”, SIAM. J. Appl. Math., 48:3 (1988), 737–748 | DOI | MR | Zbl
[6] Kuzmak G. E., “Asimptoticheskie resheniya nelineinykh differentsialnykh uravnenii s peremennymi koeffitsientami”, Prikl. matem. i mekhan., 23:3 (1959), 515–526 | MR | Zbl
[7] Krylov N. M., Bogolyubov N. N., Issledovanie prodolnoi ustoichivosti aeroplana, Gos. aviats. i atotraktornoe izd-vo, M.-L., 1932
[8] Ilin A. M., Soglasovanie asimptoticheskikh razlozhenii reshenii kraevykh zadach, Nauka, M., 1988 | MR