Nature: Millions of research articles are absent from major digital archives. This worrying finding, which Nature reported on earlier this year, was laid bare in a study by Martin Eve, who studies technology and publishing at Birkbeck, University of London. Eve sampled more than seven million articles with unique digital object identifiers (DOIs), a string of characters used to identify and link to specific publications, such as scholarly articles and official reports. Of these, he found that more than two million were ‘missing’ from archives — that is, they were not preserved in major archives that ensure literature can be found in the future.
Eve, who is also a research developer at Crossref, an organization that registers DOIs, carried out the study in an effort to better understand a problem librarians and archivists already knew about — that although researchers are generating knowledge at an unprecedented rate, it is not
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