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Venus, Mars and satellites of the outer planets : proceedings of Symposium 3 of the COSPAR Twenty-fifth Plenary Meeting held in Graz, Austria, 25th June-7th July 1984
- "Venus, Mars and satellites of the outer planets : proceedings of Symposium 3 of the COSPAR Twenty-fifth Plenary Meeting held in Graz, Austria, 25th June-7th July 1984"