RelBib: Results for "(11850522x OR 11854523x)"
https://relbib.de/search/results?filter[]=genre_facet:"Conference program"&filter[]=~author_facet:"Beetz, Manfred 1941-2021"&filter[]=~geographic_facet:"Halle (Saale)"&filter[]=~relbib_notation_facet:"[Unassigned]"&lookfor=(11850522x OR 11854523x)&type=AllFields