1. 58Spe: F.H. Spedding, K.A. Gschneidner, Jr., and A.H. Daane, “The Crystal Structures of Some of the Rare-Earth Carbides,”J. Am. Chem. Soc., 80, 4499 (1958).
2. 61Ato: M. Atoji, “Neutron Diffraction Studies of CaC2, YC2, LaC2, CeC2, TbC2, LuC2, and UC2,”J. Chem. Phys., 35, 1950 (1961).
3. 64Chu: W. Chubb and D.L. Keller, “Yttrium-Carbon System,”Carbides in Nuclear Energy, Vol. 1, L.E. Russell, Ed., Macmillan and Co., Ltd., London, 208 (1964).
4. 64Kos: T.Ya. Kosolapova and G.N. Makarenko, “On the Preparation and Properties of the Dicarbide of Yttrium, Lanthanum, Cerium, and Praseodymium,”Ukr. Khim. Zh., 30, 784 (1964).
5. 66Sch: H.L. Schick, “Yttrium Carbides,”Thermodynamics of Certain Refractory Compounds, Vol. 1, Academic Press, New York, 553 (1966).