@book
{TN_libero_mab2,
author = {
Clemens, Emil
},
title = {
Lehrbuch der Gabelsbergerschen Stenographie
Schlussel
},
edition = {
27.-28. Tsd.
}
,
publisher = {Heckner},
year = {1920},
address = {
Wolfenbüttel
},
url = {
http://slubdd.de/katalog?TN_libero_mab2
}
}