1. 56Ell: F.H. Ellinger, “Crystal Structure of δ′ Plutonium and the Thermal Expansion Characteristics of δ, δ′, and ε Plutonium”,J. Met. AIME Trans., 206, 1256–1259 (1956). (Crys Structure; Experimental)
2. 58Boc: A.A. Bochvar, S.T. Konobeevskii, V.I. Kutaitsev, T.S. Men'shikova, and N.T. Chebotarev, “Interaction Between Plutonium and Other Metals in Connection with Their Arrangements in Mendeleev's Periodic Table,”Sov. J. At. Ener., 5, 1177 (1958); Proc. 2nd U.N. Int. Conf. Peaceful Uses of Atomic Energy, Geneva, 1958, Vol. 6, 191 (1958). (Equi Diagram; Experimental; Indicates presence of a phase diagram)
3. 58Poo: D.M. Poole, G.K. Williamson, and J.A.C. Marples, “A Preliminary Investigation of the Plutonium-Thorium System,”J. Inst. Met., 86, 172 (1957-1958); also M.B. Waldron, “Phase Diagrams of Plutonium Alloys Studied at Harwell,”The Metal Plutonium, A.S. Coffinberry and W.N. Miner, Ed., Univ. of Chicago Press, Chicago, 290 (1961). (Equi Diagram; Experimental; Indicates presence of a phase diagram)
4. Prog. Nucl. Ener. Ser. V;F.W. Schonfeld,1959
5. 61Ell: R.O. Elliott and A.C. Larson, “Delta-Prime Plutonium,”The Metal Plutonium, A.S. Coffinberry and W.N. Miner, Ed., Univ. of Chicago Press, Chicago, 265–280 (1961). (Equi Diagram; Experimental; Indicates presence of a phase diagram)