An author-level metric: the h-index
The H-index, proposed by physicist J.E. Hirsch (hence the H) in 2005, is a way to measure the individual academic output of a researcher.

Which H-index?
To create the list of publications and the number of citations received you can use different sources.

Determining the H-index in Web of Science, Scopus and Google Scholar
In these handouts you can find the steps to determine the H-index of a researcher in.

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