> If the posited database exists, then a citation ought to be straightforward. my reading is that there are documents on taiwanese website, with letterhead of

> If the posited database exists, then a citation ought to be straightforward. my reading is that there are documents on taiwanese website, with letterhead of some database (Ming-Qing Historical Sources from the Institute of History and Philology, Academia Sinica), and author of the book put the name from letterhead to citation why author of essay said he never heard of such database, and claims that database is non-existing. Documents with letterhead certainly exist, we don't know about database. I found this issue is very insignificant and low quality, which brought shadow on potential quality of essay.