RUSHCHITSKY, J. . Elastic torsional wave and corresponding nonlinear wave equation. Reports of the National Academy of Sciences of Ukraine, Kyiv, Ukraine, n. 2, p. 41–47, 2022. DOI: 10.15407/dopovidi2022.02.041. Disponível em: https://nasu-periodicals.org.ua/index.php/dp/article/view/2022-2-5. Acesso em: 29 may. 2025.