Reproduced from: Akademiia Nauk Ukrains'Koi Rsr, Dopovidi, Seriia A-Fiziko-Tekhnichni I Matematichni Nauki. Abstracted in International Aerospace Abstracts. A71-12664.
Reproduction Note:
Microform. New York : American Institute of Aeronautics and Astronautics, Technical Information Service, [19--?]
