2023-01-02  OChicken  <shouran.ma@gmail.com>

Due to the risk of copyright infringement and the space limit of my VPS, I would
prefer to provide the contents of my library instead of the pdf files, except
for the books that I think are useful to my current study/research but difficult
to get the full version. If you find it difficult to get some books that you
think are useful to you, you may contact me via email, and I would be glad to
send them to you for free. But please note that, due to the risk of copyright
infringement, I would suggest you not release them on your website.