Dictionary definition language DDL2
The relational dictionary definition language (DDL2) is a formalism employed for the recording of CIF data names and their definitions and properties within the mmCIF and related dictionaries.
See also the related DDLm dictionary definition language.
Version 2.1.3 of 16 October 2000
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- Formatted pdf version [Chapter 4.10 of International Tables for Crystallography Volume G: Definition and exchange of crystallographic data, First edition (2005)]
Updated 21 July 2005