@book
{TN_libero_mab2,
author = {
Arata, Giulio U.
},
title = {
Mittelalterliche Städte Umbriens
},
publisher = {Günther},
keywords = {
Umbrien
,
Stadt
},
year = {1941},
booktitle = {Die Sammlung Parthenon},
address = {
Berlin
},
url = {
http://slubdd.de/katalog?TN_libero_mab2
}
}