PT Unknown AU El-Haji, M Freudenmann, T Albers, A Gauterin, F TI Ontology-grounded test facility requirements definition SE Tools and methods of competitive engineering: Proceedings of the ninth International Symposium on Tools and Methods of Competitive Engineering (TMCE 2012), Karlsruhe, Germany, May 7-11, 2012. Ed.: I. Horváth PY 2012 BP 1113 EP 1124 LA english ER