VONMONT, Heinz; WOLFENSBERGER, Max; JÄCKLE, Hans W.; HOFER, Peter; GEISER, Roland; PAUL, Andreas. Die sechs Abteilungen. CHIMIA, [S. l.], v. 48, n. 6, p. 171, 1994. DOI: 10.2533/chimia.1994.171. Disponível em: https://www.chimia.ch/chimia/article/view/1994_171. Acesso em: 29 apr. 2024.