@book
{TN_libero_mab2,
author = {
Humboldt, Wilhelm von
},
title = {
Briefe an eine Freundin
},
publisher = {Reclam},
year = {[ca. 1885]},
booktitle = {Reclams Universal-Bibliothek ; 1861/1865},
address = {
Leipzig
},
url = {
http://slubdd.de/katalog?TN_libero_mab2
}
}