Maria A. Stepanova, “Preorder on the set of analytic functions”, Журн. СФУ. Сер. Матем. и физ., 16:5 (2023), 681–689
В. К. Белошапка, “О простых решениях уравнений Бюргерса и Хопфа”, Изв. РАН. Сер. матем., 85:3 (2021), 5–12 ; V. K. Beloshapka, “Simple solutions of the Burgers and Hopf equations”, Izv. Math., 85:3 (2021), 343–350
Vitaly A. Krasikov, “Upper bounds for the analytic complexity of Puiseux polynomial solutions to bivariate hypergeometric systems”, Журн. СФУ. Сер. Матем. и физ., 13:6 (2020), 718–732
V. K. Beloshapka, “On simple solutions of some equations of mathematical physics”, Russ. J. Math. Phys., 27:3 (2020), 309–325