@book
{TN_libero_mab2,
author = {
Engelbrecht, Georg
AND
Clotz, Otto Gerhard
},
title = {
De contractu emptionis venditionis
},
publisher = {},
keywords = {
Hochschulschrift
},
year = {1682},
address = {
Helmestadii
},
url = {
http://slubdd.de/katalog?TN_libero_mab2
}
}