Space research XI : proceedings of open meetings of working groups of the Thirteenth Plenary Meeting of COSPAR, Leningrad, USSR, 20-29 May 1970, and of the Symposium on Remote Sounding of the Atmosphere (jointly sponsored by COSPAR, WMO and IAMAP/IUGG), Leningrad, USSR, 22, 25 and 26 May 1970. Vol. 1.
COSPAR
Bok Engelsk 1971