DONETSKYI, C. .; Shvets О. . Bifurcation of maximal attractors in nonideal pendulum systems. Reports of the National Academy of Sciences of Ukraine, Kyiv, Ukraine, n. 3, p. 13–19, 2022. DOI: 10.15407/dopovidi2022.03.013. Disponível em: https://dopovidi-nanu.org.ua/ojs/index.php/dp/article/view/2022-3-2. Acesso em: 15 aug. 2022.