RelBib: Results for "(11850391x OR 11860922x)" https://relbib.de/search/results?filter[]=~author_facet:"Barion, Hans 1899-1973"&filter[]=~author_facet:"Eichhorn, Mathias"&filter[]=~format:"Book"&lookfor=(11850391x OR 11860922x)&type=AllFields