@book
{TN_libero_mab2,
author = {
Friedrich, Caspar David
AND
Wolfradt, Willi
},
title = {
Caspar David Friedrich und die Landschaft der Romantik
},
publisher = {Mauritius-Verl.},
keywords = {
Friedrich, Caspar David
},
year = {1924},
address = {
Berlin
},
url = {
http://slubdd.de/katalog?TN_libero_mab2
}
}