1
Applications of Computer Technology to Dynamical Astronomy [E-Book] : Proceedings of the 109th Colloquium of the International Astronomical Union, held in Gaithersburg, Maryland, 27–29 July 1988 /
2
Astronomical and Astrophysical Objectives of Sub-Milliarcsecond Optical Astrometry [E-Book] : Proceedings of the 166th Symposium of the International Astronomical Union, Held in the Hague, The Netherlands, August 15–19, 1994 /
3
Dynamics of Natural and Artificial Celestial Bodies [E-Book] : Proceedings of the US/European Celestial Mechanics Workshop, held in Poznań, Poland, 3–7 July 2000 /