@misc
{TN_libero_mab2,
author = {
Schumann, Robert
Schumann, Clara
},
title = {
Arabeske op. 18
},
publisher = {Breitkopf & Härtel},
year = {1951},
booktitle = {Clara-Schumann-Ausgabe},
address = {
Leipzig
},
url = {
http://slubdd.de/katalog?TN_libero_mab2
}
}