1. W. Koster and E. Horn, Study of the System of Osmium with Cobalt and Nickel, Heraeus Festschr., 1951, p 114-123, in German
2. P. Nash, Ni-Os (Nickel-Osmium), Phase Diagrams of Binary Nickel Alloys, P. Nash, Ed., ASM International, OH, 1991, p 233-234
3. T.Ya. Velikonova, T.G. Mazhuga, O.L. Semonova, P.S. Martsenyuk, and V.M. Vereshchaka, Phase Diagram of the Ni-Os System, Powder Metall. Met. Ceram., 2002, 41(5-6), p 288-295