BONDONI, Davide. Structural features in Ernst Schröder’s work. Part II. Logic and Logical Philosophy, [S. l.], v. 21, n. 3, p. 271–315, 2012. DOI: 10.12775/LLP.2012.014. Disponível em: https://apcz.umk.pl/LLP/article/view/LLP.2012.014. Acesso em: 8 jul. 2025.