English or French; abstracts in English or French and Russian.Papers of a session of the symposium sponsored by the Committee on Space Research and th...
English or French; abstracts in English or French and Russian.
Papers of a session of the symposium sponsored by the Committee on Space Research and the International Astronomical Union.
Proceedings of the 2d meeting, Moon and planets II, published in 1968, are entered under: International Council of Scientific Unions. Committee on Space Research. Working Group I.