1. Flocculation of magnetite concentrates in flotation in magnetic field;Berdichevskii;Obogashch. Rud,1968
2. Theory of molecular interaction;Derjaguin;Acta Physicochim. URSS,1941
3. Pair correlation in a ferromagnetic colloid;De Gennes;Phys. Kondens. Mater.,1970
4. London-van der Waals attraction between spherical particles;Hamaker;Physica,1937
5. The possibility of magnetic flocculation of weakly magnetic minerals;Hencl,1979