author = { },

title = { Die Urkunden Friedrichs II. 1218 - 1220 },

publisher = {Hahn},

isbn = {9783775220033},

keywords = { Friedrich II. Heiliges Römisches Reich, Kaiser 1194-1250 , Quelle , Biografie },

year = {2010},

booktitle = {Monumenta Germaniae Historica ; [Diplomata. 4], Diplomata regum et imperatorum Germaniae ; Bd. 14, Teil 3},

address = { Hannover },

url = { http://slubdd.de/katalog?TN_libero_mab2 }