Cultivar statements in the book of the Peony Association of Chine are marked #c and used as official chinese registration (as long as there's no other available)

Zhao Xiaozhi, Zhao Xiaoqing, Li Qingdao & Liu Zheng'an : Cultivar Statements

pp. 52-212 in:

The Peony Association of China

Wang Liangying et. al. (1998), Chinese Tree Peony, China Forestry Publishing House, ISBN 7-5038-2019-5