COSPAR space research


1	9 COSPAR space research IX : Proceedings of open meetings of working groups of the eleventh Plenary Meeting of COSPAR, Tokyo, 9-21 May 1968 / organized by the Committee on Space Research--COSPAR and the Science Council of Japan ; edited by K.S.W. Champion, P.A. Smith, R.L. Smith-Rose Amsterdam : North-Holland , 1969