author = { Wagner, Richard Wagner, Richard AND Klindworth, Karl },

title = { Der Ring des Nibelungen 1 Erster Tag: Die Walküre },

publisher = {Schott},

year = {1908},

booktitle = {Richard Wagner's Werke ; 8},

address = { Mainz },

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