@book {Булгаков2011,
	title = {Мастер и Маргарита},
	year = {2011},
	publisher = {Астрель},
	organization = {Астрель},
	address = {Москва},
	author = {Булгаков, Михаил}
}
@book {Булгаков1990,
	title = {Майстора и Маргарита },
	year = {1990},
	publisher = {Интерпринт},
	organization = {Интерпринт},
	address = {София},
	author = {Булгаков, Михаил}
}
