1. The role of sulphur in the flotation of sulphide minerals;Allison,1974
2. Surface properties of hydrophobic solids;Arbiter,1975
3. Possible uses of radioactive isotopes in the field of ore concentration and studies in this direction at the Mekhanobr Institute;Bogdanov,1956
4. Beneficiation practice at the Tsumeb concentrator;Boyce,1970