TY - CPAPER AU - Olesia Oliinyk AU - Kai Petersen AU - Manfred Schoelzke AU - Martin Becker AU - Soeren Schneickert BT - International Working Conference on Requirements Engineering: Foundation for Software Quality PY - 2015 SP - 33 EP - 48 T2 - International Working Conference on Requirements Engineering: Foundation for Software Quality TI - Metrics for the evaluation of feature models in an industrial context: A case study at opel ER -