@book
{TN_libero_mab2,
author = {
Humboldt, Wilhelm von
},
title = {
Wilhelm von Humboldt's gesammelte Werke
},
publisher = {Reimer},
keywords = {
Humboldt, Wilhelm von
},
year = {18XX-},
address = {
Berlin
},
url = {
http://slubdd.de/katalog?TN_libero_mab2
}
}