@misc
{TN_libero_mab2,
author = {
Heider, Gertrud
},
title = {
Unbekannte Briefe C. D. Friedrichs an W. A. Shukowski
},
publisher = {},
isbn = {0043-6879},
keywords = {
Friedrich, Caspar David
},
year = {1963},
address = {
},
url = {
http://slubdd.de/katalog?TN_libero_mab2
}
}