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2. Russian metallurgy (translated from izvestiya akademii nauk SSSR;Sichevich;Metally,1989
3. Interaction of the Components in the System Ho-Ga-Co at 873 K. Stabilnye I Metastabilnye Fazovye Ravnovesiya V Metallicheskikh Sistemakh;Gladyshevskii,1985
4. Metallofizika (akademiya nauk ukrainskoi SSR;Gavrilenko;Institut Metallofiziki),1979
5. Pearson’s handbook of crystallographic data for intermetallic phases;Am. Soc. Metals,1985