RelBib: Results for "(11853856x OR 11850553x)"
https://relbib.de/search/results?filter[]=topic_facet:"George, Stefan DE-24 / stga"&filter[]=topic_facet:"George, Stefan"&filter[]=~relbib_notation_facet:"KBB"&lookfor=(11853856x OR 11850553x)&type=AllFields