LAVCEL-BUDKO, Olga; KRYLOVAS, Aleksandras. Weak resonances of periodical nonlinear oscillations. Lietuvos matematikos rinkinys, [S. l.], v. 58, n. B, p. 51–56, 2017. DOI: 10.15388/LMR.B.2017.09. Disponível em: https://www.journals.vu.lt/LMR/article/view/17761.. Acesso em: 2 may. 2024.