1. N. A. Doronin, The Metallurgy of Calcium (Atomizdat, Moscow, 1959) [in Russian].
2. N. A. Doronin, Calcium (Atomizdat, Moscow, 1962) [in Russian].
3. V. V. Rodyakin, Calcium, Its Compounds and Alloys (Metallurgiya, Moscow, 1967) [in Russian].
4. N. V. Baryshnikov, V. E. Geger, N. D. Denisova, et al., The Metallurgy of Zirconium and Hafnium (Metallurgiya, Moscow, 1979) [in Russian].
5. W. Rostoker, The Metallurgy of Vanadium (Wiley, New York, 1958; Inostrannaya Literatura, Moscow, 1959).