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2. A. P. Klimenko, Methods, and Devices for Measuring Concentrations of Dust [in Russian], Khimiya, Moscow (1978).
3. S. P. Belyaev et al., Optical-Electronic Methods of Measuring Aerosols [in Russian], Energiya, Moscow (1979).
4. B. S. Rinkevichyus and G. A. Saltanov, ?Optical methods for investigating two-phase flows,? in: Vapor-Liquid Flows [in Russian], Nauka i Tekhnika, Minsk (1977), pp. 176?194.
5. S. A. Senkovenko and A. G. Sutugin, ?A method for measuring the concentration of particles in dispersed flow,? Favorable decision of VNIIGPE on claim No. 2267463/25 of April 25, 1979.