Volker Luckas Tanja Broll CASUS - An Object-oriented Three-dimensional Animation System for Event-oriented Simulators. 144-150 1997 conf/ca/1997 CA https://doi.org/10.1109/CA.1997.601057 https://doi.ieeecomputersociety.org/10.1109/CA.1997.601057 db/conf/ca/ca1997.html#LuckasB97