author = { Chopin, Frédéric Oborin, Lev N. },

title = { Ballady No. 1, solʹ sinor, soč. 23 },

publisher = {Aprelevskij zavod gramplastinok},

keywords = { Schallplatte },

year = {[ca. 1959]},

abstract = {Ballady, No. 2, fa mažor, soč. 38},

abstract = {Ballady, No. 3, lja bemolʹ mažor, soč. 47},

abstract = {Ballady, No. 4, fa minor, soč. 52},

address = { [S.l.] },

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