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How fractional counting of citations affects the impact factor: Normalization in terms of differences in citation potentials among fields of science
Leydesdorff, Loet, (2011)
Integrated impact indicators compared with impact factors: An alternative research design with policy implications
Which cities produce more excellent papers than can be expected? A new mapping approach, using Google Maps, based on statistical significance testing
Bornmann, Lutz, (2011)