1. Homogeneous chemiluminescent measurement of nitric oxide with ozone;Fontijn;Anal. Chem.,1970
2. Chemiluminescence method for the determination of nitrogen dioxide;Maeda;Anal. Chem.,1980
3. R. Chand, Apparatus for measuring nitrogen oxide concentrations, US Patent 3,622,487 (1971).
4. K.F. Blurton, J.M. Sedlak, Method for the detection and measurement of nitric dioxide and mixtures thereof, US Patent 4,052,268 (1977).
5. K.F. Blurton, J.M. Sedlak, Device for the detection and NO and NO2 gases, US Patent 4,001,103 (1977).