docbookMathML1mods: docbookMathML1mods (DocBook MathML1 modules)
docbookMathML1mods:
docbookMathML1mods: DocBook MathML modules for version 1.0, 1.1CR1, 1.1b1  
docbookMathML1mods: (Modular superset of DocBook XML V4.3)
docbookMathML1mods:
docbookMathML1mods:
docbookMathML1mods:
docbookMathML1mods:
docbookMathML1mods:
docbookMathML1mods:
docbookMathML1mods: https://docbook.org/xml/mathml/