@book{Mann, The lives of the popes,
address  = {London},
author = {Mann, Horace Kinder},
editor = {},
keywords = {Europa; Frühmittelalter; Hochmittelalter; Papsttum},
series = {},
title={The lives of the popes in the early Middle Ages},
uniqueid = {93710},
url = {http://opac.regesta-imperii.de/id/93710},
year = {1925 - 1936}
}