MELICHAR, J. Mathematical logic and mother tongue. Annales Universitatis Paedagogicae Cracoviensis Studia Mathematica, [S. l.], v. 3, p. 145–148, 2003. Disponível em: https://studmath.uken.krakow.pl/article/view/13481. Acesso em: 30 oct. 2026.