Spring and Autumn Annals of the Ten Kingdoms, vol. 91.
nbu.edu.cn
3xb.nbu.edu.cn
Chen Hongjun, Study on and Examination of the Tombstone of Tang's Late Lady Minghui of Yan, Lady Liu of Pengcheng, Excavated in Fujian, Journal of Ningbo University (Liberal Arts Edition), vol. 23, no. 5 (Sept. 2010).[1][permanent dead link]
