@book
{TN_libero_mab2,
author = {
Sumowski, Werner
Friedrich, Caspar David
},
title = {
Caspar-David-Friedrich-Studien
},
publisher = {Steiner},
keywords = {
Hochschulschrift
,
Friedrich, Caspar David
,
Studium
},
year = {1970},
address = {
Wiesbaden
},
url = {
http://slubdd.de/katalog?TN_libero_mab2
}
}