@incollection{, address = {}, author = {Burdach, Konrad}, booktitle = {ADB 30}, keywords = {Heinrich <von Rugge> (1175/78c); Burdach, Konrad (1859-1936)}, pages = {605-606}, title={Art. Heinrich von Rugge}, uniqueid = {1817909}, url = {http://opac.regesta-imperii.de/id/1817909}, year = {1889} }