Google Scholar, Scopus and the Web of Science: a longitudinal and cross-disciplinary comparison

1,624 citations recorded by the source corpus.

How researchers see this paper

The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.

The economic effects of density: A synthesis (2019, positive): “Although Google Scholar is increasingly used as a tool to collect citation impact, it has been shown to inflate numbers of citations, be prone to double counting and does not have a clear indexing policy (Moed et al. 2016; Harzing & Alakangas 2016).”
Managing climate change risks in global supply chains: a review and research agenda (2019, positive): “Both the databases are commonly used for screening of data sources and are proven to provide reasonably comprehensive results (Harzing and Alakangas, 2016).”
The evolution of sentiment analysis - A review of research topics, venues, and top cited papers (2016, methodology): “As reported by Harzing and Alakangas [Harzing and Alakangas 2016], Google Scholar offers the most comprehensive coverage of the literature, but Scopus follows closely and offers quality inclusion criteria and data exporting features that Scholar does not offer (furthermore, data scraping is…”
Web of Science (WoS) and Scopus: The Titans of Bibliographic Information in Today's Academic World (2021, methodology): “In fact, the differences in citation counts between WoS and Scopus were observed having been decreased by more than 40% already only a year after the initiation of the expansion program in Scopus [13].”