IUE-ULDA access guide no. 3: International Ultraviolet Explorer-Uniform Low Dispersion Archive: Normal galaxies

IUE-ULDA access guide no. 4A: International Ultraviolet Explorer-Uniform Low Dispersion Archive active galactic nuclei, volume A

IUE-ULDA access guide no. 4B: International Ultraviolet Explorer-Uniform Low Dispersion Archive active galactic nuclei, volume B

IUE-ULDA Access Guide No. 8: T Tauri stars.

IUE/IRAS Studies of Metal Abundances and Infrared Cirrus

IUE/IRAS studies of metal abundances and infrared cirrus

IUE/Voyager observations of luminous accretion disk systems

IUE: Quiet History-Maker. (French Title: IUE: Tranquille faiseur d'histoire)

IUE: Sepia Tints. (French Title: IUE: Reflets sepia)

IUEAGN: A Database of Ultraviolet Spectra of Active Galactic Nuclei

IUEAGN: A database of ultraviolet spectra of active galactic nuclei

IUEDAC. The International Ultraviolet Explorer Data Analysis Center.

IUS application to NASA planetary missions

IV -- Sternbedeckungen durch den Mond

IV Serbian Conference on Spectral Line Shapes

IV. 1889 (Davidson), observed at Orwell Park Observatory

IV. 1891 (Barnard), observed at the Sydney Observatory

IV. Planeten-Positionen im Jahre 1867

Ivan Hafner, Original Amateur Astronomer. (Slovenian Title: Ivan Hafner, svojevrsten ljubitelj astronomije)

Ivan Naumovich Yazev (for the 100th birth anniversary).