Journals with multiple dois

[SalvatoreDiMarzo]

Crossref mashed many journal articles belonging to the same journal inside of the journal via the doi; this was done because Crossref identified them with the issn, so the doi of the journal if solved goes to the article, but it is assigned to that Journal (a journal has 157 doi), the point in common of the articles is the issn which remains the same for all the articles that have the doi connected to that journal.