You can also check Z-library. If you can't find what you are looking for and you know that an ebook version exists I may be able to get a copy of it, feel free to mail me (see address and GPG key on my profile).
Also know that the website is currently unstable due to ongoing technical improvements. So if you can't reach it you should try again later.
You can also check Z-library. If you can't find what you are looking for and you know that an ebook version exists I may be able to get a copy of it, feel free to mail me (see address and GPG key on my profile).