X- And Gamma-Ray Astronomy

Solar gamma-, X-, and EUV radiation

Proceedings of the sixteenth General assembly, Grenoble, 1976

Transactions of the International Astronomical Union Vol. 14b

Planetary Nebulae

Interstellar Dust and Related Topics

Physics and Dynamics of Meteors:Proceedings of the I.A.U. Symposium, No. 33, Tatransks, Lomnica, Czechoslovakia, 1967

Transactions of the International Astronomical Union:Reports on Astronomy

Wolf-Rayet and High-Temperature Stars

Ultraviolet Stellar Spectra and Related Ground-Based Observations

Continental Drift