McKellar, Bruce H. J.; Garbutt, M.; Stephenson, G. J. (Gerard J.), Jr. & Goldman, T. (Terry). Neutrino masses or new interactions, article, June 1, 2001; (https://digital.library.unt.edu/ark:/67531/metadc931901/m1/1/: accessed April 19, 2024), University of North Texas Libraries, UNT Digital Library, digital.library.unt.edu; .