Alfons Ritgen (German Wikipedia)

Analysis of information sources in references of the Wikipedia article "Alfons Ritgen" in German language version.

refsWebsite

Global rank German rank

1uni-duesseldorf.de

5,334^th place

371^st place

uni-duesseldorf.de

digital.ub.uni-duesseldorf.de

Gothaisches Genealogisches Taschenbuch der Briefadeligen Häuser. 1911. Fünfter Jahrgang, Justus Perthes, Gotha 1910, S. 160.