"Copies of this preface, composed by Tang Taizong, are recorded in QuanTangwen:
Quan Tang wen 10.10a-12a and, together with the complementary account by the Heir Apparent (see Or.8210/S.343:
V/5), in P.2323 and P.3127. The fact that the title appropriate to the Heir Apparent 's account appears at the close of this copy suggests that the two segments are out of sequence."
(JB)