Reproduced from: Akademiia Nauk Latviiskoi Ssr, Izvestiia, Seriia Fizicheskikh I Tekhnicheskikh Nauk. Abstracted in International Aerospace Abstracts. A71-17737.
Reproduction Note
Microform. New York : American Institute of Aeronautics and Astronautics, Technical Information Service, [19--?]
