Richard V. Gaines, H. Catherine W. Skinner, Eugene E. Foord, Brian Mason, and Abraham Rosenzweig: "Dana's new mineralogy", p. 962. John Wiley & Sons, 1997 /wiki/James_Dwight_Dana ↩
Mineral Handbook http://www.handbookofmineralogy.org/pdfs/svanbergite.pdf ↩
Webmineral http://webmineral.com/data/Svanbergite.shtml ↩