https://doi.org/10.1351/goldbook.I03331
@N04257@ having the same @A00499@ but different @M03726@.
Sources:
PAC, 1994, 66, 2513. (Nomenclature for radioanalytical chemistry (IUPAC Recommendations 1994)) on page 2520 [Terms] [Paper]
Red Book, 3rd ed., p. 35 [Terms] [Book]