@misc
{TN_libero_mab2,
author = {
Flotow, Friedrich von
Kogel, Gustav Friedrich
},
title = {
Martha
Oper in 4 Akten
},
edition = {
Klavierauszug mit Text
}
,
publisher = {Peters},
year = {1952},
address = {
Leipzig
},
url = {
http://slubdd.de/katalog?TN_libero_mab2
}
}