GOFEN, Alexander. Powers which commute or associate as solutions of ODEs. Teaching Mathematics and Computer Science, [S. l.], v. 11, n. 2, p. 241–254, 2013. DOI: 10.5485/TMCS.2013.0347. Disponível em: https://ojs.lib.unideb.hu/tmcs/article/view/14941. Acesso em: 27 sep. 2024.