terminology and concepts. See also Organization for the Advancement of Structured Information Standards (OASIS) S-expression DSSSL – a Scheme-based processing language similar to XSL LaTeX List of general purpose markup languages Markup language SGML entity HyTime Tag omission XML References External links Overview of SGML Resources at W3C's website. Introduction and Examples of Software Documentation in SGML SC34 Committee Records, Charles Babbage Institute – Collection on the development of SGML and other standards influential in the development of current XML tools; documents include early drafts of SGML administrative materials, documentation, working group papers, and standards for computer languages. SGML Syntax Summary by Charles Goldfarb SGML document introducing you to SGML; Some reasons why SGML is important The SGML Declaration, in SGML and HTML Explained, Martin Bryan (1997) (the original URL is broken at http://www.is-thought.co.uk/book/sgml-4.htm#Fig4-2) SGML Declarations Wayne Wohler, IBM Corporation, 1994. ISO 9069:1988 – Information processing – SGML support facilities – SGML Document Interchange Format (SDIF) ISO/IEC 9070:1991 – Information technology – SGML support facilities – Registration procedures for public text owner identifiers Data modeling languages ISO standards Markup languages Technical communication