Should citations in scholarly writing appear as author-year snippets, like (Pantcheva, 2018; Zelle, 2015), or numbers, like [1,2]? Let’s refer to these two methods as author-style and numeric-style. You may have also heard them referred to as the Harvard and Vancouver referencing systems. Author-style Here’s an example of author-style from our recent Sci-Hub Coverage Study published in eLife. First, see how citations appear in the main text: Notice how studies with 3 …