Author,Title,Edition,Publisher,Year,Series,Number,ISBN,ISSN,URL "Riedler, W. and Torkar, K. M. and COSPAR. Plenary Meeting","Scientific ballooning : proceedings of Symposium 14 of the COSPAR Interdisciplinary Scientific Commission of the COSPAR Twenty-eighth Plenary Meeting held in The Hague, The Netherlands, 25 June-6 July 1990",,Published for the Committee on Space Research by Pergamon Press,1992,Advances in space research,,0080420486,,https://cir.nii.ac.jp/crid/1130282271085803904