The polychromy of antique sculptures and the terracotta army of the first Chinese emperor : studies on materials, painting techniques, and conservation, international conference in Xi'an, Shaanxi History Museum, March 22-28, 1999 = [Gu dai diao su cai hui he Qiushihuang bing ma yong : cai liao, hui hua ji shu he bao hu zhi yan jiu] - Wu, Yongqi; Emmerling, Erwin (Arbeitshefte des Bayerischen Landesamtes für Denkmalpflege, 2001)