It scares me actually, when trying a search I got this:

поиск временно недоступен. пожалуйста, используйте DOI или прямые ссылки search temporarily unavailable, please use DOI or direct links If you're using Google chrome, you can install Sci-Hub extension to use search.

To do this: Download the extension and unpack it. You get the "Sci-Hub" folder with code. Open Chrome and navigate to chrome://extensions, or just open the menu -> settings -> extensions. Check the developer mode in upper right.[...]