1. S. V. Zemskov, S. P. Gabuda, and V. N. Mit’kin, Zh. Strukt. Khim. 17(3), 483 (1976).
2. S. V. Zemskov and S. P. Gabuda, Zh. Strukt. Khim. 17(5), 904 (1976).
3. É. P. Zeer, V. E. Zobov, and O. V. Falaleev, New Effects in NMR of Polycrystals (Nauka, Novosibirsk, 1991).
4. B. Weinstock, J. Phys. Chem. Solids 18, 86 (1961).
5. R. Glauber and V. Schomaker, Phys. Rev. 89, 667 (1953).