SCHMIDT, Alfred. Ludwig Wittgenstein’s Nachlass in the UNESCO Memory of the World register. Nordic Wittgenstein Review, [S. l.], v. 7, n. 2, p. 209–213, 2018. DOI: 10.15845/nwr.v7i2.3517. Disponível em: https://www.nordicwittgensteinreview.com/article/view/3517. Acesso em: 23 feb. 2025.