[compiled by the editorial committee, A. Aono, K. Tsukamoto, M. Ichinose]National Committee for the International Geophysical Coordination, Science Council of Japan1961
[compiled by the Editorial Committee, Y. Aono, J. Yasuda, H. Sugiuchi, in the Radio Research Laboratories, Ministry of Posts and telecommunications]National Committee for the International Geophysical Coordination, Science Council of Japan1961