RelBib: Results for "11850553x" https://relbib.de/search/results?filter[]=~author_facet:"Drexel, Kurt"&filter[]=~author_facet:"François, Étienne 1943-"&filter[]=~format:"Article"&filter[]=~relbib_notation_facet:"KBB"&lookfor=11850553x&type=AllFields