K. Smith, H. U. Orbist and B. Fibicher, Ai Weiwei, London 2009, pp. 39 and 40 (another example illustrated in color).
M. Siemons and A. Weiwei, Ai Weiwei, New York, 2009, p. 46 (another example illustrated in color).
L. Bovier, Ai Weiwei: Fairytale, a Reader, Zurich, 2012, pp. 38-39 (another example illustrated).
Kassel, Documenta 12, Fairytale, June-September 2007, no. LG. 019 and 02-037.
Paris, Galerie Torri, A few things that I know from them, Braco Dimitrijevic, Hamish Fulton, Ai WeiWei, Zhao Zhao, 2013 (another example exhibited).