Carsten Steiner Vladimir Malashchuk David J. Kubinski Gunter Hagen Ralf Moos Catalyst State Diagnosis of Three-Way Catalytic Converters Using Different Resonance Parameters - A Microwave Cavity Perturbation Study. 3559 2019 19 Sensors 16 https://doi.org/10.3390/s19163559 https://www.wikidata.org/entity/Q92824140 db/journals/sensors/sensors19.html#SteinerMKHM19