"Terbium Oxide". Stanford Advanced Materials. Retrieved Aug 19, 2024.
usgs.gov
pubs.usgs.gov
R. Robie, B. Hemingway, and J. Fisher, “Thermodynamic Properties of Minerals and Related Substances at 298.15K and 1bar Pressure and at Higher Temperatures,” US Geol. Surv., vol. 1452, 1978.[1]