@book{47928,
	author = {Шмидт, О. Ю.},
	title = {Большая Советская Энциклопедия. Т. 20 :},
	publisher = {Советская энциклопедия,},
	year = {1930.},
	series = {Советская энциклопедия},
	address = {Москва :}
}