RelBib: Results for "(11853856x OR 11850553x)"
https://relbib.de/search/results?filter[]=era_facet:"18th century"&filter[]=~author_facet:"Petzoldt, Martin 1946-2015"&filter[]=~author_facet:"Simmel, Georg 1858-1918"&filter[]=~language:"German"&lookfor=(11853856x OR 11850553x)&type=AllFields