1. M. Radojevic, V.N. Bashkin, Practical Environmental Analysis, Royal Society of Chemistry, Cambridge, 1999, pp. 217–235.
2. Standards Methods for the Examination of Water and Wastewater, seventh ed., American Public Health Association, Washington, DC, 1989, pp. 4–110, 4–131.
3. T. Darimont, R. Schwabe, M. Sonneborn, in: R.W. Frei, U.A.Th. Brinkman (eds.), Analysis and Chemistry of Water Pollutants, Gordon and Breach Science Publishers, New York, 1983, pp. 109–117.
4. A Simple Spectrophotometric Determination of Nitrate in Water, Resin, and Soil Extracts
5. Miniature flow injection analyser for laboratory, shipboard and in situ monitoring of nitrate in estuarine and coastal waters