@book
{TN_libero_mab2,
author = {
Young, Percy M.
Young, Percy M.
},
title = {
Robert Schumann
},
publisher = {Deutscher Verl. für Musik},
keywords = {
Schumann, Robert 1810-1856
,
Schumann, Robert
},
year = {1968},
address = {
Leipzig
},
url = {
http://slubdd.de/katalog?TN_libero_mab2
}
}