Declassified document AECD (series). 2055. Studies with colloids containing radioisotopes of yttrium, zirconium, columbium, and lanthanum: 2, Controlled selective localization of radioisotopes of yttrium, zirconium, and columbium in bone marrow, liver, and spleen [with list of references]: by Ernest L. Dobson, Hardin B. Jones, John W. Gofman, Lola R. Kelly, Leonard J. Walker.