IsotopeData is based on a wide range of sources, with enhancement at the Wolfram Research Companies by both human and algorithmic processing.

Among principal sources for IsotopeData are:

Atomic Mass Data Center. "NUBASE." 2003. »

Firestone, R. B. "The Berkeley Laboratory Isotopes Project's: Exploring the Table of Isotopes." 2000. »

Raghavan, P. "Table of Nuclear Moments." Atomic Data and Nuclear Data Tables 42, no. 2 (1989): 189–291.

Sansonetti, J. E. and W. C. Martin. "NIST Handbook of Basic Atomic Spectroscopic Data." 2005. »

United States National Institute of Standards and Technology. "Atomic Weights and Isotopic Compositions Elements." 2005. »

United States National Nuclear Data Center, Brookhaven National Laboratory. "Nuclear Wallet Cards." 2007. »

United States National Nuclear Data Center, Brookhaven National Laboratory. "NuDat 2.3." 2007. »

To report an error or suggest an addition to IsotopeData, contact the Wolfram Research IsotopeData team.