1. Measurement of the vertical and horizontal profile of aerosol concentration in urban air with the integrating nephelometer;Ahlquist;Environ. Sci. Technol.,1968
2. Transport of lycopodium spores and other small particles to rough surfaces;Chamberlain,1966
3. The use of lidar in air pollution studies;Hamilton;Int. J. Air Water Pollut.,1966
4. The entry of aerosols into sampling filter and heads;Davies;Bri. J. appl. Phys., (Ser. 2),1968
5. Notes on the design and leak testing of sampling filter holders;Gussman;Am. Ind. Hyg. Ass. J.,1962