1. Kontinuirliches Messen des Staubgehaltes in Luft und Abgasen;Dresia;VDI-Z,1964
2. Experience with the radiometric dust measuring unit “Beta Staubmeter”;Dresia;Staub.,1971
3. Absolute beta counting at defined geometries;Gleason;Nucleonics,1951
4. Beta-absorption-impactor aerosol mass monitor;Lilienfeld;AIHA J.,1970
5. A mass loading and radio-activity analyzer for atmospheric particulates;Nader;AIHA J.,1960