1. Measurement of the vertical and horizontal profile of aerosol concentration in urban air with the integrating nephelometer;Ahlquist;Environ. Sci. Technol.,1968
2. Recording counter for the continuous determination of the concentration of pulverulent air pollutants;Aurand;Staub (Engl. Trans.),1967
3. Adhesion of particles;Corn,1966
4. Dust samplers with mass-proportional indication of recording;Gast;Staub,1960
5. Using quartz crystals as sorption detectors;King;Research/Development,1969