1. 32Can: G. Canneri,Metall. Ital., 24, 90 (1932) in Italian; cited by [61Gsc]. K. A. Gschneidner, Jr.,Rare Earth Alloys, D. Van Nostrand Co., New York, 103 (1961).
2. 42Now: H. Nowotny, “The Systems Aluminum-Cerium and Aluminum-Lanthanum,”Z. Kristallogr., 34, 22 (1942) in German.
3. 42Sch: G. E. R. Schulze, “The Crystal Structure of LaAl2.”Z. Kristallogr., 104, 257 (1942).
4. 43Vog: R. Vogel and T. Heumann, “On the Homologous Com-pounds of Cerium, Lanthanum, and Praseodymium with Copper, Silver, Gold, Magnesium, Aluminum, Thallium, Zinc, and Lead”,Z. Metallkd., 35, 29 (1943) in German.
5. 57Gau: F. Gaume-Mahn and M. Cohen, “Study of Lanthanum-Aluminum Alloys,”J. Rech. CNRS, (38), 64 (1957) in French.