@book{2937,
	author = {Sievernich, Gereon, and Martin-Gropius-Bau (Berlin, Germany)},
	title = {Ai Weiwei :},
	publisher = {Prestel,},
	year = {2014.},
	address = {Munich :},
	note = {Catalog of the exhibition held at the Martin-Gropius-Bau, Berlin, April 3-July 7, 2014.}
}