AMORIM , Ronni Geraldo Gomes de. Quartic potential in phase space . Physicae, [S. l.], v. 10, n. 1, p. 20–25, 2014. DOI: 10.5196/physicae.v10i10.310. Disponível em: https://econtents.bc.unicamp.br/inpec/index.php/physicae/article/view/13329. Acesso em: 25 aug. 2024.