These are descriptions of (and information about) the citation metrics available in Invenio.

We currently display the following citation statistics for any group of papers

Total number of citable papers analyzed

This is simply the number of papers from your search that were counted in the HTML citesummary. This is the number used for averages, etc. Other papers may have been found, but may not have been eligible for citation tracking.

Total number of citations

Simply the total number of citations to the papers in your search.

Average citations per paper

The above two numbers as a ratio.

h-index

The h-index (or simply, 'h') is defined as the number of papers with citation number higher or equal to h. It is intended as a useful index to characterize the scientific output of a researcher. First proposed by Hirsch in physics/0508025, it is explained better there than here.