GUTLYANSKIĬ, V.; NESMELOVA, O.; RYAZANOV, V. Semilinear equations in a plane and quasiconformal mappings . Reports of the National Academy of Sciences of Ukraine, Kyiv, Ukraine, n. 1, p. 10–16, 2024. DOI: 10.15407/dopovidi2017.01.010. Disponível em: https://nasu-periodicals.org.ua/index.php/dp/article/view/3104. Acesso em: 19 jun. 2025.