@misc
{TN_libero_mab2,
author = {
Spohr, Louis
Herrmann, Carl
},
title = {
Duette für zwei Violinen op. 39
},
edition = {
Stimmen, neurev. Ausg.
}
,
publisher = {Peters},
year = {1962},
address = {
Leipzig
},
url = {
http://slubdd.de/katalog?TN_libero_mab2
}
}