Citation: Pet'kov, V.V.; Cherkashin, E.E. (1972). Interaction between the Laves phases in quasi-binary sections of Zr Fe2 - (Nb Fe2, Na Fe2) and Zr Co2 - (Nb Co2, Ta Co2). Dopovidi Akademii Nauk Ukrains'koi RSR, Seriya A: Fiziko-Tekhnichni ta Matematichni Nauki, 32, pp. 276-279.