RelBib: Results for "(11850522x OR 11850553x)"
https://relbib.de/search/results?filter[]=~author_facet:"Bachhaus Eisenach gGmbH"&filter[]=~author_facet:"Klek, Konrad 1960-"&filter[]=~language:"German"&filter[]=~publisher_facet:"Bachhaus Eisenach"&filter[]=~relbib_notation_facet:"[Unassigned]"&lookfor=(11850522x OR 11850553x)&type=AllFields