%A Fulchignoni, Marcello %A COSPAR %T Planetary studies : proceedings of Symposium 4 and the Topical Meeting of the COSPAR Interdisciplinary Scientific Commission B (Meetings B7 and B8) of the COSPAR Twenty-eighth Plenary Meeting held in the Hague, the Netherlands, 25 June- 6 July 1990 %I Published for The Committee on Space Research by Pergamon %D 1992 %S Advances in space research %V v. 12, no. 11 %U https://ci.nii.ac.jp/ncid/BA75070770