Table 2.

Key indicators, unit of analysis, software used in each analysis and key procedures.

Indicator		Definition	Unit of analysis (Software and procedure/Source)
DC: Direct Citation	GC: Global Citation	Counts the number of citations that an article in the collection has received from all the publications indexed in the source (In this paper: Retrieved from Scopus)	Documents (Bibliometrix - Most Global cited documents); Clustering by coupling by GC
	LC: Local Citation	Counts the number of citations a document received from other articles in the collection (Calculated by Bibliometrix based on the references cited by the papers within the collection)	Documents and Journals (Bibliometrix - Most Local cited documents/sources); Clustering by coupling by LC
LCR: Local Citation Rate		Local Citations over Global Citations (%) – Calculated by authors	Documents and Journals (Bibliometrix)
EI h-index		Author and journal h-index calculation from the EI articles collection	Journals (Bibliometrix - Sources Local Impact) and authors (Bibexcel- Analysis h-Index)
Scopus h-index		Author and journal h-index retrieved from Scopus	Journal (SJR) and authors (Scopus)
Author's Production overtime		Global Citation over the number of years since its publication	Authors (Bibliometrix - Authors' production over time)