HACKER, Peter. Forms of Life. Nordic Wittgenstein Review, [S. l.], v. 4, p. 1–20, 2015. DOI: 10.15845/nwr.v4i0.3320. Disponível em: https://www.nordicwittgensteinreview.com/article/view/3320. Acesso em: 30 jan. 2025.