International Astronomical Union.

• Astrophysical Supercomputing Using Particle Simulations
• Brown Dwarfs
• Galaxies and Their Constituents at the Highest Angular Resolutions IAU Symposium 205
• High resolution in solar physics
• Maps of the Cosmos
• New light on galaxy evolution
• Planetary Systems in the Universe: Observation, Formation and Evolution
• Proceedings of the fifteenth General Assembly, Sydney, 1973 and extraordinary General Assembly, Poland, 1973
• Star Formation at High Angular Resolution
• Stellar Rotation
• Topics in interstellar matter
• 42nd name-list of variable stars