Before spidering the site for offline reading, be aware:

“Rather than secure rights to the recommended papers, we have simply provided links to Google Scholar searches that should help the reader locate the relevant papers.”

Why not to Scihub?

Sci-Hub rules:

    1. You do not talk about Sci-Hub.
    2. You do NOT talk about Sci-Hub.
    3. If a download says "Stop," goes limp,
       or taps out, that download is over. 
    4. Only two tries per mirror. 
    5. One download at a time. 
    6. Shirt and shoes optional. 
    7. Downloads will continue until publicly funded
       research is widely distributed. 
    8. If this is your first time at Sci-Hub, you
       have to download something interesting,
       actually read at least part of it, learn
       something, and then fight ignorance and/or
       stupidity with it.

Then you were successfully beworn.

A perfect task for an AI agent, BTW.