Horwitz, E. P.; Schmitz, F. J. & Rokop, D. J. Separation of rubidium from irradiated aluminum-encapsulated uranium, report, January 1, 1982; (https://digital.library.unt.edu/ark:/67531/metadc1074538/m1/1/: accessed July 16, 2024), University of North Texas Libraries, UNT Digital Library, digital.library.unt.edu; .