RelBib: Results for "(11850021x OR 11860922x)"
https://relbib.de/search/results?filter[]=genre_facet:"Thesis"&filter[]=~author_facet:"Barion, Hans 1899-1973"&filter[]=~author_facet:"Eichhorn, Mathias"&filter[]=~geographic_facet:"Germany"&lookfor=(11850021x OR 11860922x)&type=AllFields