ScienceDirect Article Linking
To get the persistent link for an article in ScienceDirect, simply copy the URL from the browser.
ScienceDirect uses static links. This why you can copy that URL from the browser and it will work as a persistent link to the article.
ScienceDirect Journal Linking
To get the persistent link to a specific journal in ScienceDirect, navigate to the journal's landing page and simply copy the URL from the browser.