@book
{TN_libero_mab2,
author = {
Internationaler Stenographenverband Gabelsberger
Grünbaum, Max
},
title = {
Stammbuch des Gabelsbergerschen Systems
},
publisher = {Heckner},
year = {1908},
address = {
Wolfenbüttel
},
url = {
http://slubdd.de/katalog?TN_libero_mab2
}
}