DIN/ISO- hub?

I don’t know if this is the right subreddit. I would like to read some DIN/ISO “paper”, but have no access. Is there anything comparable to sci-hub for papers to get the PDF? I would be very happy.

Urgent required

Encyclopedia of theoretical ecology by Alan Hastings and louis Gross https://doi.org/10.1525/9780520951785

Can anybody help?

I need this https://www.nature.com/articles/s43588-021-00140-w paper. This is something new journal but scihub is not working :p I’ll very appreciate if anybody upload this