@book{ 0-1540036154, title = {Die Urkunden Ludwigs des Frommen}, series = {Monumenta Germaniae Historica Diplomatum Karolinorvm}, author = {Ludwig I. Heiliges Römisches Reich, Kaiser}, address = {Wiesbaden}, publisher = {Harrassowitz Verlag}, year = {2016}, language = {German}, language = {Latin}, url = {https://katalog.bibliothek.tu-chemnitz.de/Record/0-1540036154} }