[ДX11538a: The remnant Dunhuang Codex's of the Classic of Difficult Issues collected in Russia].
The finalized edition of the Classic of Difficult Issues was collected by Yang Xuancao in the early Tang dynasty and is the only extant version so far. No earlier versions were seen since then. However, ДX11538a, one of the Russian Collection of DUNHUANG remnant papers, was verified to be a segment of the said Classic. Compared with the now circulated edition, this version is randomly arranged and irregular in its text. Even so, it still reflects, to some extent, the old picture of that ancient Classic, with some points even better than the latter. This version is significant to the researchers of this Classic even today.
PubMed Abstracts
PubMed Abstracts