@book{ 0-1120183782, title = {Zwischen Canossa und Worms: Staat und Kirche 1077-1122}, author = {Werner, Ernst}, address = {Berlin}, publisher = {Akad.-Verl.}, year = {1978}, edition = {3., unveränd. Aufl.}, language = {German}, url = {https://katalog.hgb-leipzig.de/Record/0-1120183782} }