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Research Impact Metrics

A guide for those wanting to use research impact metrics for evaluation, analytics, and reviews, e.g., promotion & tenure.

Bibliographic Databases

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Google Scholar

Use the search box below to search Google Scholar and automatically see Get VText links which will connect you to full-text content through the VT Libraries' subscriptions. (Otherwise follow these directions to manually make those links appear.)

Scopus logo


Scopus indexes citations of journal articles, conference papers, and books in the sciences, medicine, social sciences, arts, and humanities. You can perform cited reference searches. You can compare authors, institutions, and journals using various metrics. 1800s-present

Dimensions logo

Dimensions Plus

Dimensions Plus indexes more than 100 million publications, ranging from articles published in scholarly journals, books and book chapters, to preprints and conference proceedings. Dimensions Plus is an extensive and fully interlinked database with publications, grants, patents, clinical trials, datasets and policy documents. 1600s to present.

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Web of Science from Clarivate Analytics

The three Web of Science databases index citations from journal articles and conference proceedings in the sciences, social sciences, and arts and humanities. You can perform cited reference searches, analyze trends and patterns, and create visual representations of citation relationships. 1900-present

Sources of Citation Data

Sources of Citation Data