SCHLEIERMACHER, A. Some consequences of a theorem of Liouville. Annales Universitatis Paedagogicae Cracoviensis Studia Mathematica, [S. l.], v. 2, p. 39–53, 2002. Disponível em: https://studmath.uken.krakow.pl/article/view/13509. Acesso em: 30 oct. 2026.