1. G. B. Bokii, Introduction to Crystal Chemistry [in Russian] (Izd. MGU, 1954).
2. P. I. Kripyakevich, ?Classified system of binary intermetallic phases? Izvest. Sektora Fiz.-Khim. Analiza IONKh Akad. Nauk SSSR.24, 59 (1954).
3. N. V. Belov, Structure of Ionic Crystals and Metallic Phases [in Russian] (Izd. AN SSSR, Moscow. 1947).
4. B. K. Vul'f ?Classification of ternary metallic phases? Fizika Metallov i Metallovedenie,3 1 97 (1956)
5. N. S. Kurnakov. Introduction to Physicochemical Analysis [in Russian] 4th Editions (Izd. AN SSSR, Moscow, 1940).