RelBib: Results for "11853856X" https://relbib.de/search/results?filter[]=~author_facet:"Aler, Jan 1910-1992"&filter[]=~author_facet:"Sieg, Ulrich 1960-"&filter[]=~format:"Book"&filter[]=~geographic_facet:"Germany"&lookfor=11853856X&type=AllFields