RelBib: Results for "(11850522x OR 11850553x)"
https://relbib.de/search/results?filter[]=topic_facet:"Congresses"&filter[]=~author_facet:"Szeskus, Reinhard 1935-"&filter[]=~geographic_facet:"Leipzig"&filter[]=~geographic_facet:"Mitteldeutschland"&filter[]=~relbib_notation_facet:"[Unassigned]"&lookfor=(11850522x OR 11850553x)&type=AllFields