SKLYAR, G. M.; MARCHENKO, V. A. Hardy inequality and the construction of the generator of a C0-group with eigenvectors not forming a basis . Reports of the National Academy of Sciences of Ukraine, Kyiv, Ukraine, n. 9, p. 13–17, 2025. DOI: 10.15407/dopovidi2015.09.013. Disponível em: https://nasu-periodicals.org.ua/index.php/dp/article/view/15210. Acesso em: 19 apr. 2026.