Bowers, C. J.; Budker, D.; Commins, E. D.; DeMille, D.; Freedman, S. J.; Nguyen, A. -T. et al. Experimental Investigation of Excited-State Lifetimes in Atomic Ytterbium, article, November 15, 2011; (https://digital.library.unt.edu/ark:/67531/metadc835985/m1/1/: accessed April 24, 2024), University of North Texas Libraries, UNT Digital Library, digital.library.unt.edu; .

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