@book
{TN_libero_mab2,
author = {
Luther, Martin
Preuß, Hans
AND
Preuß, Friedrich
AND
Preuß, Hans
AND
Luther, Martin
},
title = {
Von der Freiheit eines Christenmenschen
},
publisher = {Büring},
year = {1917},
address = {
Leipzig
},
url = {
http://slubdd.de/katalog?TN_libero_mab2
}
}