Citations
Citations (i.e. referencing) is an example of scholarly 'impact' and can be a proxy for identifying whether a research article has been read by lots of other experts with the findings credited in other published articles. Remember that a citation can only be a 'signal' of re-use and that a paper receiving lots of citations is not an absolute proxy for high quality research. You should always take the time to try and investigate what the citations are concluding about the original article. Citations can be:
The tools on this page provide different insights into the attention research articles have received by other scholars or, more broadly, e.g. social media or news coverage. There are also free tools that allow you to identify an author's most cited publications.