TY - JOUR A1 - Lippmann, Torben T1 - Engineering innovation-related knowledge: How a core ontology makes innovations retrievable for innovation seekers T2 - International Journal of Cooperative Information Systems Y1 - 2013 UR - https://whge.opus.hbz-nrw.de/frontdoor/index/index/docId/493 VL - 22 IS - 3 SP - 42 EP - 53 ER -