See a list of German Genealogical and Historical Periodicals with links to those digitized at this site: German Genealogical Periodicals
A list of periodicals indexed in the Literature database of the DAGV is listed at this site: http://famlit.genealogy.net/zsfkld.html
German History. Oxford Journal. http://www.oxfordjournals.org/our_journals/gh/about.html
Link to Archiv fuer Stamm und Wappenkunde Vol. 5 Jahrgang 1904-1905: Hathi Trust
Link to journals online for Thuringia: http://zs.thulb.uni-jena.de/content/main/journalList.xml#A
Bielefeld: http://ds.ub.uni-bielefeld.de/viewer/collections/zeitschriftenderaufklaerung/
Göttingen: https://adw-goe.de/gjz18/datenbank/