1. E.D. Hinkley (ed.): Laser Monitoring of the Atmosphere, Topics Appl. Phys. Vol. 14 (Springer, Berlin, Heidelberg, New York, 1976)
2. J. Melngailis: IEEE Trans. GE-10, 2 (1972)
3. V.P. Zharov, A.S. Gomenyuk, V.B. P’aset’zki, E.G. Tokhtuev: In proc. Intern. Symp. on Metrological Assurance of Measurements for Environmental Controle, Leningrad (IMEKO, VNIIM 1981) p.80
4. V.P. Zharov, A.S. Gomenyuk, V.B. P’iasetzky, E.G. Tokhtuev: Zh. Prikl. Spektroskopii (Russian) 39, 1029 (1983)
5. C.K.N. Patel: Science 202, 167 (1978)