GAVRYLENKO, G.; MATSNER, V. I. A method of determination of the minimum frequencies of oscillations of imperfect ribbed cylindrical shells on elastic foundations . Reports of the National Academy of Sciences of Ukraine, Kyiv, Ukraine, n. 8, p. 67–71, 2025. DOI: 10.15407/dopovidi2014.08.067. Disponível em: https://nasu-periodicals.org.ua/index.php/dp/article/view/16612. Acesso em: 10 may. 2026.