1. C.R. Webster, R.T. Menzies, E.D. Hinkley: In: Laser Remote Chemical Analysis, ed. by R.M. Measures (Wiley, New York 1988) p. 163
2. B.J. Finlayson-Pitts, J.N. Pitts, Jr.: Atmospheric Chemistry (Wiley, New York 1986) p. 326
3. R. Grisar, H. Böttner, M. Tacke, G. Restelli (eds.): Monitoring of Gaseous Pollutants by Tunable Diode Lasers (Kluwer, Dordrecht 1992)
4. D.R. Hastie, G.I. Mackay, T. Iguchi, B.A. Ridley, H.I. Schiff: Environ. Sci. Technol. 17, 352A (1983)
5. H.I. Schiff, G.W. Harris, G.I. Mackay: In: The Chemistry of Acid Rain. ed. by R.W. Johnson, G.E. Gordon, W. Calkins, A.Z. Elzerman (Am. Chem. Soc., Washington 1987) p. 274