ZWICKY, Hans. Über die spektrale photographische Sensibilisation. CHIMIA, [S. l.], v. 15, n. 4, p. 300, 1961. DOI: 10.2533/chimia.1961.300. Disponível em: https://www.chimia.ch/chimia/article/view/1961_300. Acesso em: 6 apr. 2025.