docbook31-dtd: docbook31-dtd 3.1 (Data Type Defitions (DTD) for DocBook)
docbook31-dtd: 
docbook31-dtd: The DocBook SGML DTD package contains document type definitions for 
docbook31-dtd: verification of SGML data files against the DocBook rule set. These 
docbook31-dtd: are useful for structuring books and software documentation to a 
docbook31-dtd: standard allowing you to utilize transformations already written for 
docbook31-dtd: that standard.
docbook31-dtd: 
docbook31-dtd: This package contains the DTD of Docbook 3.1.
docbook31-dtd: 
docbook31-dtd: 

