RelBib: Results for "(11853856x OR 11850553x)"
https://relbib.de/search/results?filter[]=~author_facet:"Braungart, Wolfgang 1956-"&filter[]=~author_facet:"Sieg, Ulrich 1960-"&filter[]=~dewey-hundreds:"900 - History & geography"&lookfor=(11853856x OR 11850553x)&type=AllFields