1. Proc.9th Int. Congr.,International Medicine, Simpkin Marshall;Davies,1969
2. Filtration Society Symposium on Filtration in Medical and Health Engineering;Davies,1969
3. Mechanics of Aerosols;Fuchs,1964
4. The relative importance of Brownian diffusion and other factors in aerosol filtration;Thalhammer;Atmospheric Environment,1968
5. The relative importance of Brownian diffusion and other factors in aerosol filtration;Wilson;Atmospheric Environment,1967