JØRGENSEN, Christian K. The Centenary of the Discovery of Ytterbium by Marignac in Geneva 1878. CHIMIA, [S. l.], v. 32, n. 3, p. 89, 1978. DOI: 10.2533/chimia.1978.89. Disponível em: https://www.chimia.ch/chimia/article/view/1978_89. Acesso em: 4 apr. 2025.