RelBib: Results for "((11850522x OR 11854523x) OR (11850553x OR 16750553x))" https://relbib.de/search/results?filter[]=era_facet:"08.09.2017-28.01.2018"&lookfor=((11850522x OR 11854523x) OR (11850553x OR 16750553x))&type=AllFields