↑N. N. Greenwood an A. Earnshaw: Chemie der Elemente, 1. aplaag, VCH, Weinheim 1988, ISBN 3-527-26169-9, S. 1545.
↑David R. Lide: CRC Handbook of Chemistry and Physics: A ready-reference book of chemical and physical data, 90. aplaag, CRC Taylor & Francis, Boca Raton Fla. 2009, ISBN 978-1-4200-9084-0, Section 4, S. 4-142 bis 4-147. A taalen san bereegent üüb g/mol an uun cgs-ianhaiden uunden. Heer san jo tu SI-ianhaiden amreegent.
↑ 5,05,1Yiming Zhang, Julian R. G. Evans, Shoufeng Yang: Corrected Values for Boiling Points and Enthalpies of Vaporization of Elements in Handbooks. uun: Journal of Chemical & Engineering Data. 56, 2011, S. 328–337, doi:10.1021/je1011086.