21
Herbig-Haro Flows and the Birth of Low Mass Stars [E-Book] : Proceedings of the 182nd Symposium of the International Astronomical Union, Held in Chamonix, France, 20–26 January 1997 /
22
Fundamental Stellar Properties: The Interaction Between Observation and Theory [E-Book] : Proceedings of the 189th Symposium of the International Astronomical Union, Held at the Women’s College, University of Sydney, Australia, 13–17 January 1997 /
23
Reports on Astronomy [E-Book] : Transactions of the International Astronomical Union Volume XXIIIA /
...International Council of Scientific Unions / International Astronomical Union / Union Astronomique Internationale ;...

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24
Astrophysics in the Extreme Ultraviolet [E-Book] : Proceedings of Colloquium No. 152 of the International Astronomical Union, held in Berkeley, California, March 27–30, 1995 /
25
Examining the Big Bang and Diffuse Background Radiations [E-Book] : Proceedings of the 168th Symposium of the International Astronomical Union, Held in the Hague, The Netherlands, August 23–26, 1994 /
26
Extragalactic Radio Sources [E-Book] : Proceedings of the 175th Symposium of the International Astronomical Union, Held in Bologna, Italy 10–14 October 1995 /
27
Cataclysmic Variables and Related Objects [E-Book] : Proceedings of the 158th Colloquium of the International Astronomical Union, Held at Keele, United Kingdom, June 26–30, 1995 /
28
Unsolved Problems of the Milky Way [E-Book] : Proceedings of the 169th Symposium of the International Astronomical Union, held in the Hague, the Netherlands, August 23–29, 1994 /
29
Transactions of the International Astronomical Union, Volume XXIIB [E-Book] : Proceeding of the Twenty-Second General Assembly, The Hague 1994 /
30
Astrophysical Applications of Gravitational Lensing [E-Book] : Proceedings of the 173rd Symposium of the International Astronomical Union, Held in Melbourne, Australia, 9–14 JULY, 1995 /
31
Stellar Populations [E-Book] : Proceedings of the 164th Symposium of the International Astronomical Union, held in the Hague, The Netherlands, August 15–19, 1994 /
32
Wolf-Rayet Stars: Binaries, Colliding Winds, Evolution [E-Book] : Proceedings of the 163rd Symposium of the International Astronomical Union, Held in La Biodola, Elba, Italia, May 2–6, 1994 /
33
New Developments in Array Technology and Applications [E-Book] : Proceedings of the 167th Symposium of the International Astronomical Union, held in the Hague, the Netherlands, August 23–27, 1994 /
34
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 /
35
The Sun as a Variable Star: Solar and Stellar Irradiance Variations [E-Book] : Proceedings of the 143rd Colloquium of the International Astronomical Union held in the Clarion Harvest House, Boulder, Colorado, June 20–25, 1993 /
36
History of the IAU [E-Book] : The Birth and First Half-Century of the International Astronomical Union /
37
Reports on Astronomy [E-Book] /
...International Council of Scientific Unions / International Astronomical Union Transactions / Union Astronomique Internationale, Transactions of the International Astronomical Union Volume XXIIA ;...

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Astronomy from Wide-Field Imaging [E-Book] : Proceedings of the 161st Symposium of the International Astronomical Union, Held in Potsdam, Germany, August 23–27, 1993 /
39
Author, Subject, and Object Indexes [E-Book] /
40
Very High Angular Resolution Imaging [E-Book] : Proceedings of the 158th Symposium of the International Astronomical Union, held at the Women’s College, University of Sydney, Australia, 11–15 January 1993 /