Qualitative and Quantitative Behaviour of Planetary Systems: Proceedings of the Third Alexander von Humboldt Colloquium on Celestial Mechanics 1993 · ENGLISH · PDF View details →
Dynamics of Planets and Satellites and Theories of Their Motion: Proceedings of the 41st Colloquium of the International Astronomical Union Held in Cambridge, England, 17–19 August 1976 1978 · ENGLISH · PDF View details →
Fundamental Astronomy and Solar System Dynamics: Invited Papers Honoring Prof. Walter Fricke on the Occasion of His 70th Birthday 1986 · ENGLISH · PDF View details →