@book
{TN_libero_mab2,
author = {
Bernhardi, Wilhelm
},
title = {
Konrad III.
2 1146 - 1152
},
publisher = {Duncker & Humblot},
year = {1883},
booktitle = {Jahrbücher der deutschen Geschichte ; 16,2},
address = {
Leipzig
},
url = {
http://slubdd.de/katalog?TN_libero_mab2
}
}