1. Abstracts of the 10th Int. Laser Radar Conf., October 1980, Silver Spring, Maryland (abstracts available from the American Meteorological Society, Boston, Mass., USA).
2. Abstracts of the 11th Int. Laser Radar Conf, June 1982, University of Wisconsin-Madison, NASA Conf. Publication 2228 (abstracts available from the US Air Force Office of Scientific Research, NASA Langley Research Center, Hampton, Virginia, 23665, USA).
3. Fraser, R. S., Kaufman, Y. J. and Machoney, R. L. (1984) Atmos. Environ, 18, 2577–78.
4. Browell, E. V., Wilkerson, T. D. and McIlrath, T. J. (1979) Appl. Opt, 18, 3474–83.
5. Browell, E. V. (1982) Opt. Eng, 21, 128–32.