Zeller, A.F.; Ronningen, R.M.; Godeke, Arno; Heibronn, L.H; McMahan-Norris, P. & Gupta, R. RADIATION DAMAGE TO BSCCO-2223 FROM 50 MEV PROTONS, article, November 1, 2007; (https://digital.library.unt.edu/ark:/67531/metadc893522/m1/1/: accessed April 19, 2019), University of North Texas Libraries, Digital Library, digital.library.unt.edu; .