Samoilenko, V. H., Yu. I. Samoilenko, and V. S. Vovk. “Asymptotic Analysis of the Singularly Perturbed Korteweg-De Vries Equation”. Bulletin of Taras Shevchenko National University of Kyiv. Physics and Mathematics, no. 1 (February 1, 2019): 194–197. Accessed October 15, 2026. https://bphm.knu.ua/bphm/article/view/68.