Gorodnii М.; GONCHAR, I. On the bounded solutions of a difference equation with variable operator coefficient . Reports of the National Academy of Sciences of Ukraine, Kyiv, Ukraine, n. 12, p. 12–16, 2024. DOI: 10.15407/dopovidi2016.12.012. Disponível em: https://nasu-periodicals.org.ua/index.php/dp/article/view/12894. Acesso em: 10 jan. 2025.