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Comets in the Post-Halley Era [E-Book] : In Part Based on Reviews Presented at the 121st Colloquium of the International Astronomical Union, Held in Bamberg, Germany, April 24–28, 1989 /
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Origin and Evolution of Interplanetary Dust [E-Book] : Proceedings of the 126th Colloquium of the International Astronomical Union, Held in Kyoto, Japan, August 27–30, 1990 /
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Fragmentation of Molecular Clouds and Star Formation [E-Book] : Proceedings of the 147th Symposium of the International Astronomical Union, Held in Grenoble, France, June 12–16, 1990 /
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Dynamics of Quiescent Prominences [E-Book] : Proceedings of the No. 117 Colloquium of the International Astronomical Union Hvar, SR Croatia, Yugoslavia 1989 /
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Physics of Classical Novae [E-Book] : Proceedings of Colloquium No. 122 of the International Astronomical Union Held in Madrid, Spain, on 27–30 June 1989 /
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Observatories in Earth Orbit and Beyond [E-Book] : Proceedings of the 123RD Colloquium of the International Astronomical Union, Held in Greenbelt, Maryland, U.S.A., April 24–27,1990 /
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Transactions of the International Astronomical Union [E-Book] : Proceedings of the Twentieth General Assembly Baltimore 1988 /
Table of Contents: ... of Science & Technology Policy -- Address by Prof. J. Sahade, President of the International Astronomical Union -- II Extraordinary General Assembly -- 1. Extension of the membership of the Executive Committee by a President-Elect -- 2. Establishment of a new...

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Inside the Sun [E-Book] : Proceedings of the 121st Colloquium of the International Astronomical Union, Held at Versailles, France, May 22–26, 1989 /
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Radio Recombination Lines: 25 Years of Investigation [E-Book] : Proceedings of the 125th Colloquium of the International Astronomical Union, Held in Puschino, U.S.S.R., September 11–16, 1989 /
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Active Close Binaries [E-Book] /
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Solar Photosphere: Structure, Convection, and Magnetic Fields [E-Book] : Proceedings of the 138th Symposium of the International Astronomical Union, Held in Kiev, U.S.S.R., May 15–20, 1989 /
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Inertial Coordinate System on the Sky : Proceedings of the 141st Symposium of the International Astronomical Union Held in Leningrad, U.S.S.R., October 17–21, 198 [E-Book]9 /
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Author, Subject, and Object Indexes to Volumes 37–46. Literature 1984–1988 [E-Book].
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Literature 1988, Part 2 [E-Book] /
Esser, U.
1989
... of the International Astronomical Union ;...

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Solar and Stellar Flares [E-Book] : Proceedings of the 104th Colloquium of the International Astronomical Union held in Stanford, California, August 15–19, 1988 /
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Physics of Luminous Blue Variables [E-Book] : Proceedings of the 113th Colloquium of the International Astronomical Union, Held at Val Morin, Quebec Province, Canada, August 15–18, 1988 /
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The Center of the Galaxy [E-Book] : Proceedings of the 136th Symposium of the International Astronomical Union, Held in Los Angeles, U.S.A., July 25–29, 1988 /
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Algols [E-Book] : Proceedings of the 107th Colloquium of the International Astronomical Union held in Sidney, B.C., Canada, August 15–19, 1988 /
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Interstellar dust : symposium of the International Astronomical Union 135 : proceedings Santa-Clara, CA, 26.07.88-30.07.88 /
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...Symposium of the International Astronomical Union ;...
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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 /