@incollection{, address = {}, author = {Bekker, Hugo}, booktitle = {Dictionary of the Middle Ages}, keywords = {Heinrich <von Rugge> (1175/78c)}, pages = {141-142}, title={Art. Heinrich von Rugge}, uniqueid = {920297}, url = {http://opac.regesta-imperii.de/id/920297}, year = {1985} }