(The bizarre story of "Heterocycles.")
Digital preservation, access control, and scholarly needs.
At the time of writing this (2024-04-11), the entire content of a “key” chemistry journal called Heterocycles, with over 17,000 articles in it, from 1973 to 2023, has been knocked offline due to what the publisher vaguely describes as “various circumstances”.
https://rossmounce.co.uk/2024/04/11/things-we-can-learn-from-the-ongoing-heterocycles-debacle/