FÄSSLER, Thomas F.; HOFFMANN, Rudolf. Clusters of the Heavier Elements of Main Groups 14–16: A Novel Synthetic Route for Polyanions in Molten Crown Ether. CHIMIA, [S. l.], v. 52, n. 4, p. 158, 1998. DOI: 10.2533/chimia.1998.158. Disponível em: https://www.chimia.ch/chimia/article/view/1998_158. Acesso em: 29 mar. 2024.