There are a total of 5 documents which comprise the G-XML Version 2.0 specification. The English language specifications are presently at the 2.0 level revision. 

1. "Main Book": forward, overview, glossary of terms used and DTD are present in this document.

2. Annex 1: Describes the definitions and structures of the Compound Module of G-XML

3. Annex 2: Describes the definitions and composition of the G-XML "parts" module.

4. Annex 3: Describes the definitions and grammer of the G-XML elements

5. Annex 4: Additional document which describes the background of G-XML and also the four types of logical structures which are used in G-XML for encoding of spatial data.

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