Table 2.

Indicators of the depth and breadth of the citation impact of a publication

Absolute indicatorsRelative indicators
Breadth CP(R[citing pub] = 0) PCP(R[citing pub] = 0)
Number of publications citing the focal publication that do not cite other publications citing the focal publication Proportion of publications citing the focal publication that do not cite other publications citing the focal publication
Depth CP(R[citing pub] > 0) PCP(R[citing pub] > 0)
Number of publications citing the focal publication that also cite other publications citing the focal publication Proportion of publications citing the focal publication that also cite other publications citing the focal publication
Depth TR[citing pub] MR[citing pub]
Total number of references in publications citing the focal publication to other publications citing the focal publication Average number of references in publications citing the focal publication to other publications citing the focal publication
Absolute indicatorsRelative indicators
Breadth CP(R[citing pub] = 0) PCP(R[citing pub] = 0)
Number of publications citing the focal publication that do not cite other publications citing the focal publication Proportion of publications citing the focal publication that do not cite other publications citing the focal publication
Depth CP(R[citing pub] > 0) PCP(R[citing pub] > 0)
Number of publications citing the focal publication that also cite other publications citing the focal publication Proportion of publications citing the focal publication that also cite other publications citing the focal publication
Depth TR[citing pub] MR[citing pub]
Total number of references in publications citing the focal publication to other publications citing the focal publication Average number of references in publications citing the focal publication to other publications citing the focal publication
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