@misc
{TN_libero_mab2,
author = {
Krenek, Ernst
AND
Kokoschka, Oskar
},
title = {
Orpheus und Eurydike
op. 21
},
publisher = {Universal-Edition},
year = {1972},
abstract = {c 1925},
address = {
[Wien]
},
url = {
http://slubdd.de/katalog?TN_libero_mab2
}
}