Japan Institute of Heterocyclic Chemistry, the publisher of the journal Heterocycles (1973-2023) [0] is suing CLOCKSS, after its content was released on June 25, 2024 [1]. All of the content from Heterocycles had ceased being available online, and per their agreement with CLOCKSS Archive in 2011,[2] all of the journal's 106 volumes have been made available under the CC BY-NC-ND 4.0 license.[3]

For how this works, see "How CLOCKSS Works" [4] & "How LOCKSS Works" [5].

Chemistry World also had an earlier article ("A key chemistry journal disappeared from the web. Others are at risk", 2024-04-09 [6]) discussing the journal's sudden disappearance [7] and the loss of access when it went offline, an increasingly common problem with scholarly research.

[0]: https://en.wikipedia.org/wiki/Heterocycles_(journal)

[1]: https://clockss.org/clockss-triggers-heterocycles/

[2]: https://clockss.org/the-japan-institute-of-heterocyclic-chem...

[3]: https://clockss.org/triggered-content/heterocycles/

[4]: https://clockss.org/about/how-clockss-works/

[5]: https://www.lockss.org/use-lockss/how-lockss-works

[6]: https://www.chemistryworld.com/news/a-key-chemistry-journal-...

[7]: https://web.archive.org/web/20240217181955/https:/www.hetero...