Friends, A major problem has been flagged by Dr Martin Paul Eve. He says "Act now to stop millions of research papers from disappearing." Digital preservation is not keeping up with the growth of scholarly knowledge. Recognizing its causes is the first step to securing records everywhere for future generations. Please see Nature, 26 Nov 2024. Also, please see https://science.slashdot.org/story/24/03/07/0614207/millions-of-research-pap... [DOI: 10.1038/d41586-024-00616-5 https://doi.org/10.1038/d41586-024-00616-5]. In an experimental search of a few thousand research articles, about a quarter of papers in different fields, all having DOI, were untraceable. That is really alarming. With warm regards, Arun http://orcid.org/0000-0002-4398-4658 http://www.researcherid.com/rid/B-9925-2009