KNAKKERGARD MØLLER, Christian. Problems in Solid State Spectroscopy. CHIMIA, [S. l.], v. 26, n. 6, p. 299, 1972. DOI: 10.2533/chimia.1972.299. Disponível em: https://www.chimia.ch/chimia/article/view/1972_299. Acesso em: 6 apr. 2025.