ŠOPAUSKAS, Laisvūnas. Implicit Quantification of the Predicate and Port-Royal Logic. Problemos, [S. l.], v. 65, p. 126–142, 2004. DOI: 10.15388/Problemos.2004.65.6655. Disponível em: https://www.journals.vu.lt/problemos/article/view/6655. Acesso em: 5 dec. 2025.