1. Ya. F. Lomnitskaya and R. R. Korolishin, ?The interaction of phosphorus and zirconium with chromium and manganese?, Izv. Akad. Nauk SSSR, Neorgan. Mater.,23, No. 1, 77?80 (1987).
2. G. V. Samsonov and L. L. Vereikina, Phosphides [in Russian], Izd. Akad. Nauk UkrSSR, Kiev (1961).
3. Yu. B. Kuz'ma, Ya. F. Lomnitskaya, and S. V. Orishchin, ?The interaction of phosphorus with transition metals of groups IV?VIIa and metals of the iron triad?, in: Stable and Metastable Phase Equilibria in Metallic Systems [in Russian], Nauka, Moscow (1985), pp. 12?18.
4. Ya. F. Lomnitskaya, ?The phosphides ZrCu2P2 and HfCu2P2 and their crystalline structure?, Zh. Neorg. Khim.,31, No. 1, 72?74 (1986).
5. A. Harsta, ?Crystal structure refinement of the K-phase in the Hf-Mo-P system?, Acta Chem. Scand.,A36, No. 6, 535?539 (1982).