Raimund Dachselt Michael Hinz Klaus Meißner Contigra: an XML-based architecture for component-oriented 3D applications. 155-163 2002 conf/vrml/2002 Web3D https://doi.org/10.1145/504502.504527 https://www.wikidata.org/entity/Q59559186 db/conf/vrml/vrml2002.html#DachseltHM02