Peter Häussinger; Reinhard Glatthaar; Wilhelm Rhode; Helmut Kick; Christian Benkmann; Josef Weber; Hans-Jörg Wunschel; Viktor Stenke; Edith Leicht; Hermann Stenger (2002). "Noble gases". Ullmann's Encyclopedia of Industrial Chemistry. Wiley. doi:10.1002/14356007.a17_485. ISBN978-3527306732.
CRC handbook of chemistry and physics : a ready-reference book of chemical and physical data. Haynes, William M.,, Lide, David R., 1928-, Bruno, Thomas J. (2016-2017, 97th ed.). Boca Raton, Florida. 2016-06-22. ISBN978-1-4987-5429-3. OCLC957751024.{{cite book}}: CS1 maint: others (ลิงก์)