1. 55Cof: A.S. Coffinberry and F.H. Ellinger, “The Intermetallic Compounds of Plutonium,”Proc. U.N. Conf. on Peaceful Uses of Atomic Energy, Vol. 9, United Nations, Geneva, 138–146 (1955). (Crys Structure; Review)
2. 56Cof: A.S. Coffinberry and M.B. Waldron, “A Review of the Physical Metallurgy of Plutonium,”Progress in Nuclear Energy Series V, Metallurgy and Fuels, Vol. 1, H.M. Finniston and J.P. Howe, Ed., Pergamon Press, London, 354–410 (1956). (Crys Structure; Review)
3. 56Ell: F.H. Ellinger, “Crystal Structure of Delta-Prime Plutonium and the Thermal Expansion Characteristics of Delta, Delta-Prime, and Epsilon Plutonium,”Trans. AIME, 206, 1256–1259 (1956). (Crys Structure; Experimental)
4. 56Mck: D.E. McKenzie, “The Volatilization of Plutonium from Neutron-Irradiated Uranium,”Can. J. Chem., 34, 515–522 (1956). (Thermo; Experimental)
5. 58Boc: A.A. Bochvar, S.T. Konobeevskii, V.I. Kutaitsev, T.S. Menshikova, and N.T. Chebotarev, “Interaction of Plutonium and Other Metals in Connection with Their Arrangement in Mendeleev’s Periodic Table,”Proc. 2nd U.N. Int. Conf. on Peaceful Uses of Atomic Energy, Vol. 6, United Nations, Geneva, 184–193 (1958). (Equi Diagram, Crys Structure; Review; Indicates presence of a phase diagram)