MAKAROV, V. L. The FD-method in spectral problems for the Schrödinger operator with polynomial potential on (-∞, ∞) . Reports of the National Academy of Sciences of Ukraine, Kyiv, Ukraine, n. 11, p. 5–11, 2025. DOI: 10.15407/dopovidi2015.11.005. Disponível em: https://nasu-periodicals.org.ua/index.php/dp/article/view/15363. Acesso em: 13 may. 2025.