1. U. Ts. Andres, L. S. Polak, and S. I. Syrovatskii, ?Electro-magnetic expulsion of a spherical body from a conducting fluid,? Zh. tekh. fiz., vol. 33, no. 3, p. 263, 1963.
2. U. Ts. Andres and G. M. Bunin, ?Determining the effective weight increase of a magnetic medium in a nonuniform magnetic field. Coal concentration,? Proceedings of the Mineral Fuels Institute [in Russian], p. 147, 1965.
3. T. L. Neuringer and R. E. Rosensweig, ?Ferrohydrodynamics,? Phys. Fluids, vol. 7, no. 12, p. 1927, 1964.