1. G. S. Karabashev and A. N. Solov'ev, in: Instruments and Methods for Measuring Optical Characteristics of the Ocean and Atmosphere Over the Ocean [in Russian], Institute of Oceanography of the USSR Academy of Sciences, Moscow (1975), pp. 89?94.
2. F. Früngel and C. Koch, IEEE J. Oceanic Engineering,OE-1, No. 1, 21?32 (1976).
3. N. A. Frank, F. Ya. Sid'ko, A. V. Lukanev, and A. D. Aponasenko, in: Optical Methods for Studying the Oceans and Interior Bodies of Water [in Russian], Nauka, Novosibirsk (1979), pp. 300?303.
4. N. S. Brown and C. S. French, Plant. Physiol.,34, No. 3, 305?309 (1959).
5. A. N. Solov'ev, Oceanographic Research [in Russian], Nauka, Moscow (1975), No. 28, pp. 58?61.