From War to Diplomatic Parity in Eleventh-century China, Sung's Foreign Relations with Kitan Liao, [History of Warfare, Volume 33]

This is a study of war between Sung China and Kitan Liao, the treaty at Shan-yuan in 1005 that ended it, and the forms and textures of peaceful diplomatic contact between the two states that prevailed for the rest of the eleventh century."