@book
{TN_libero_mab2,
author = {
Löffler, Hans
AND
Trübner, Georg
},
title = {
Pattern drill book
Buch Pattern drill book / Hans Löffler; Georg Trübner
},
publisher = {Verl. Enzyklopädie},
year = {1966},
address = {
Leipzig
},
url = {
http://slubdd.de/katalog?TN_libero_mab2
}
}