@misc
{TN_libero_mab2,
author = {
Burgmüller, Friedrich
Niemann, Walter
},
title = {
25 leichte Etüden
für Klavier; Opus 100 = 25 etudes faciles = 25 easy studies
},
edition = {
Neue Ausgabe
}
,
publisher = {Wilhelm Hansen},
year = {c 1913},
abstract = {For klaver. - 15326},
booktitle = {Wilhelm Hansen Edition ; 1470},
address = {
København
},
url = {
http://slubdd.de/katalog?TN_libero_mab2
}
}