*http://de.wikipedia.org/wiki/Papierformat *http://www.ibm.com/developerworks/xml/library/x-dita6/x-dita_downloads.html *http://dita-ot.sourceforge.net/ *http://docs.oasis-open.org/dita/v1.0/archspec/ditaspec.toc.html *http://docs.oasis-open.org/dita/v1.0/langspec/ditaref-type.toc.html