HEIDARI TAVANI, M. R. Existence of periodic solutions for a class of p-Hamiltonian systems. Eurasian Mathematical Journal, [S. l.], v. 9, n. 2, p. 22–33, 2018. DOI: 10.32523/2077-9879-2018-9-2-22-33. Disponível em: https://emj.enu.kz/index.php/main/article/view/113. Acesso em: 18 sep. 2026.