National Nuclear Data Center, Brookhaven National Laboratory, information extracted from the NuDat 2.1 database (页面存档备份,存于互联网档案馆). (Retrieved Sept. 2005, from the code of the popup boxes).
Isotope masses from Ame2003 Atomic Mass Evaluation互联网档案馆的存檔,存档日期2008-09-23. by G. Audi, A.H. Wapstra, C. Thibault, J. Blachot and O. Bersillon in Nuclear Physics A729 (2003).
National Nuclear Data Center, Brookhaven National Laboratory, information extracted from the NuDat 2.1 database (页面存档备份,存于互联网档案馆). (Retrieved Sept. 2005, from the code of the popup boxes).
Isotope masses from Ame2003 Atomic Mass Evaluation互联网档案馆的存檔,存档日期2008-09-23. by G. Audi, A.H. Wapstra, C. Thibault, J. Blachot and O. Bersillon in Nuclear Physics A729 (2003).