@book{MGH Epist. 2,
address  = {Berlin},
author = {},
keywords = {Europa; 6. Jahrhundert; 7. Jahrhundert; Chronikalische Quellen; Urkundenregister; Papsttum; Gregor I. (der Grosse) (590-604); Hartmann, Ludo Moritz (1865-1924)},
editor = {Ewald, Paul; Hartmann, Ludo Moritz},
series = {Monumenta Germaniae Historica. Epistolae (in Quart) / 2},
title={Gregorii I papae Registrum epistolarum. Libri VIII-XIV},
uniqueid = {131808},
url = {http://opac.regesta-imperii.de/id/131808},
year = {1892 - 1899}
}