AUKŠTUOLYTĖ, Nijolė. Analysis of Logical Basis of Knowledge in Frege’s Philosophy. Problemos, [S. l.], v. 58, p. 91–98, 2000. DOI: 10.15388/Problemos.2000.58.6811. Disponível em: https://journals.vu.lt./problemos/article/view/6811. Acesso em: 19 apr. 2025.