This document defines a VOResource extension for defining data collections and services operating on them in the Virtual Observatory. To understand where this belongs, have a look at https://ui.adsabs.harvard.edu/abs/2014A&C.....7..101D/abstract.

Stable versions of this document are available through the IVOA document repository.

To build a PDF version this document, you will need a reasonably complete LaTeX installation, a sufficiently capable make, preferably latexmk and probably rsvg-convert. For further details, see ivoatexDoc.

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