00629nam a2200205Ia 4500003000900000008004100009020001800050040001600068080002200084111007400106245008400180260003800264300001000302650004100312650002000353650001200373650001000385700002000395710000800415IN-BaIIA211028s9999    xx            000 0 eng d  a2-85428-100-4  cIIA Library  a082.2:52bIAU-C75  aInternational Astronomical Union Colloquium n75thc Touloused1982 0aPlanetary ringscedited by A. Brahic                                             aToulousebCepadues-Editionsc1984  a767p.  aAstronomy and Astrophysics thesaurus  aPlanetary rings  aPlanets  aRings  aBrahic, A., ed.  aIAU