HENSOLDT, A. Peirce and Wittgenstein on the Life of Signs (in Polish). Diametros, [S. l.], n. 41, p. 38–55, 2014. DOI: 10.13153/diam.41.2014.651. Disponível em: https://diametros.uj.edu.pl/diametros/article/view/651. Acesso em: 7 oct. 2022.