Samoilenko, V. H., Samoilenko, Y. I., & Vovk, V. S. (2019). Asymptotic analysis of the singularly perturbed Korteweg-de Vries equation. Bulletin of Taras Shevchenko National University of Kyiv. Physics and Mathematics, 1, 194-197. https://doi.org/10.17721/1812-5409.2019/1.45