311. Verein für Geschichte der Deutschen in Böhmen. Type: ARTICLE, model:article, and TEXT Language: German Rights: http://creativecommons.org/publicdomain/mark/1.0/ and policy:public
312. Walther Haupt - Der Brakteatenfund von Grubschütz 1896. Type: ARTICLE, model:article, and TEXT Language: German Rights: http://creativecommons.org/publicdomain/mark/1.0/ and policy:public
313. Walther Haupt - Zur Münzkunde des Landes Zittau im Mittelalter Type: ARTICLE, model:article, and TEXT Language: German Rights: http://creativecommons.org/publicdomain/mark/1.0/ and policy:public