SOMSEN, Geert. George Sarton (1884–1956). Studium, Amsterdam, v. 6, n. 3-4, p. 259–262, 2013. DOI: 10.18352/studium.9286. Disponível em: https://testplatform.openjournals.nl/studium/article/view/20325. Acesso em: 11 apr. 2026.