@book{306615,
	author = {Keldyš, Ûrij Vsevolodovič and Levaševa, Ol΄ga Evgen΄evna},
	title = {История русской музыки. Т. 5 : 1826-1850},
	publisher = {Muzyka},
	year = {1988},
	address = {Moskva}
}