RelBib: Results for "(11853856x OR 11850553x)"
https://relbib.de/search/results?filter[]=~author_facet:"Neue Bachgesellschaft"&filter[]=~author_facet:"Sieg, Ulrich 1960-"&filter[]=~format:"Book"&filter[]=~language:"German"&lookfor=(11853856x OR 11850553x)&type=AllFields