* {{cite journal|author = [[International Union of Pure and Applied Chemistry]]|url = http://www.iupac.org/publications/pac/1984/pdf/5606x0695.pdf|doi = 0033-4545/84 $3.00 0.00|volume = 56 |issue = 6|year = 1984|pages = 695–768|title = Element by Element Review of Their Atomic Weights|journal =[[Pure and Applied Chemistry|Pure Appl. Chem.]]}}
