1. Gasanalyse, Methoden der Arbeitspraxis;Bayer,1960
2. Colorimetric determination of non-metals;Boltz,1958
3. The analytical chemistry of industrial poisons, hazards and solvents;Jacobs,1949
4. Bestimmung von Schweeflwasserstoff in der Atmosphäre;Buck;Staub,1964
5. Automatic colorimetric determination of low concentrations of sulphate for measuring SO2 in ambient air;Persson;Int. J. Air Wat. Pollut.,1966