IVOA Recommendation: Sky Event Reporting Metadata Version 2.0
IVOA Recommendation: Space-Time Coordinate Metadata for the Virtual Observatory Version 1.33
IVOA Recommendation: Spectrum Data Model 1.1
IVOA Recommendation: Table Access Protocol Version 1.0
IVOA Recommendation: The UCD1+ controlled vocabulary Version 1.23
IVOA Recommendation: Universal Worker Service Pattern Version 1.0
IVOA Recommendation: Vocabularies in the Virtual Observatory Version 1.19
IVOA Recommendation: VODataService: a VOResource Schema Extension for Describing Collections and Services Version 1.1
IVOA Recommendation: VOResource: an XML Encoding Schema for Resource Metadata Version 1.03
IVOA Recommendation: VOSpace specification Version 1.15
IVOA Recommendation: VOTable Format Definition Version 1.2
IVOA Recommendation: Web Services Basic Profile Version 1.0
IVS Products for Precise Global Reference Frames
IVS' contribution to ITRF2008: Status and Results
IVSTrop: Status and recommendations of the IVS rapid troposphere combination
IW And is a Z Cam-Type Dwarf Nova
IX Russian-Finnish Symposium on Radio Astronomy "Multi-wavelength investigations of solar and stellar activity and active galactic nuclei"
IXAE observations of the X-ray pulsar XTE J1946+274
IXOcat: A ROSAT HRI Catalog of Intermediate-luminosity X-ray Objects
IY Hya - A new super Li-rich carbon star