author = { Ligeti, György Hell, Thomas },

title = { Études pour piano },

publisher = {Wergo},

keywords = { CD },

year = {P 2012},

abstract = {Premier livre},

abstract = {Deuxième livre},

abstract = {Troisième livre},

address = { Mainz },

url = { http://slubdd.de/katalog?TN_libero_mab2 }