SAVCHUK , V. .; SAVCHUK, M. . Characterization of the Schur class in terms of the coefficients of a series on the Laguerre basis . Reports of the National Academy of Sciences of Ukraine, Kyiv, Ukraine, n. 11, p. 9–15, 2020. DOI: 10.15407/dopovidi2020.11.009. Disponível em: https://nasu-periodicals.org.ua/index.php/dp/article/view/2020-11-2. Acesso em: 30 may. 2026.