CHIANG, Y.-M.; YU, G.-F. Galoisian approach to complex oscillation theory of some Hill equations. MATHEMATICA SCANDINAVICA, [S. l.], v. 124, n. 1, p. 102–131, 2019. DOI: 10.7146/math.scand.a-110889. Disponível em: https://www.mscand.dk/article/view/110889. Acesso em: 29 mar. 2024.