@book
{TN_libero_mab2,
author = {
Schubring, Paul
},
title = {
Berlin
},
publisher = {Union Dt. Verlagsges.},
keywords = {
Berlin
,
Museum
},
year = {19XX-},
booktitle = {Moderner Cicerone},
address = {
Stuttgart
},
url = {
http://slubdd.de/katalog?TN_libero_mab2
}
}