1. V. I. Klassen, Magnetization of Water Systems [in Russian], Khimiya, Moscow (1978).
2. S. Bordi and G. Papeschi, Geofiz. Meteorol., 14, 28 (1965).
3. G. S. Agafonov, V. I. Klassen, and Yu. A. Mart?yanov, Tsvetnye Metally, No. 5, 47 (1970).
4. A. I. Shakhov and E. E. Dushkin, Gig. Sanit., No. 9, 106 (1965).
5. V. F. Gavrikov, L. O. Nikiforova, A. Sh. Neduva, and L. M. Belopol?skii, Melioratsiya i Vodnoe Khozyaistvo, No. 4, 22 (1999).