1. 63Smi: F.A. Smidt, Jr. and A.H. Daane, “Electrical Resistivity of Rare Earth Alloys”,J. Phys. Chem. Sol., 24, 361 (1963).
2. 64Bur: I.V. Burov, V.F. Terekhova, and E.M. Savitskii, “Alloys of Gadolinium with Terbium and Erbium”,Zh. Neorg. Khim., 9, 2036 (1964); TR:Russ. J. Inorg. Chem., 9, 1100 (1964).
3. 65Sav: E.M. Savitskii, V.F. Terekhova, I.V. Burov, and O.P. Naumkin, “Alloys and Compounds of the Rare Earth Metals”, inRare Earth Research III, L. Eyring, Ed., Gordon and Breach, New York, 301 (1965).
4. 67Mcw: D.B. McWhan and A.L. Stevens, “Magnetic Properties of Some Rare-Earth Alloys at High Pressures”Phys. Rev., 154, 438 (1967).
5. 73Spe: F.H. Spedding, B. Sandeen and B.J. Beaudry, “The Er-Y, Tb-Ho, Tb-Er, Dy-Ho, Dy-Er, and Ho-Er Phase Systems”,J. Less-Common Met., 31, 1 (1973).