Abstracted In International Aerospace Abstracts., Reproduced from: In- Figure and Motion of The Moon < Figura I Dvizhenie Luny < . Edited By A. A. Iakovkin. Kiev, Izdatel'stvo Naukova Dumka, 1967, P. 131- 150. 6 Refs. In Russian, and A67-33126.
Microform. New York : American Institute of Aeronautics and Astronautics, Technical Information Service, [19--?]