January 17, 2022

Bibliometrics/Scientometrics: “A Review of the Literature on Citation Impact Indicators”

The following literature review (68 pages; PDF) was recently made available online by Ludo Waltman, a researcher Centre for Science and Technology Studies, Leiden University, Netherlands.


A Review of the Literature on Citation Impact Indicators


Ludo Waltman
Leiden University


via arXiv
July 8, 2015


Citation impact indicators nowadays play an important role in research evaluation, and consequently these indicators have received a lot of attention in the bibliometric and scientometric literature.

This paper provides an in-depth review of the literature on citation impact indicators. First, an overview is given of the literature on bibliographic databases that can be used to calculate citation impact indicators (Web of Science, Scopus, and Google Scholar).

Next, selected topics in the literature on citation impact indicators are reviewed in detail. The first topic is the selection of publications and citations to be included in the calculation of citation impact indicators.

The second topic is the normalization of citation impact indicators, in particular normalization for field differences. Counting methods for dealing with co-authored publications are the third topic, and citation impact indicators for journals are the last topic. The paper concludes by offering some recommendations for future research.

Direct to Full Text Article (68 pages; PDF)

See Also: Other Publications by Ludo Waltman

See Also: Waltman and his Colleague, Nees Jan van Eck, are developers of VOSviewer and CitNetExplorer, tools to analyze and visualize bibliographic networks.

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