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  • 1 Université Paul Verlaine Laboratory of Physics and Mechanics of Materials Metz France
  • | 2 Université Paris 6 Laboratory of Mechanics and Technology, Ecole Normale Supérieure de Cachan 61, avenue du Président Wilson 94235 Cachan cedex France
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We develop and discuss the theoretical basis of a new criterion for ranking scientific institutions. Our novel index, which is related to the h-index, provides a metric which removes the size dependence. We discuss its mathematical properties such as merging rules of two sets of papers and analyze the relations between the underlying rank/citation-frequency law and the h-index. The proposed index should be seen as a complement to the h-index, to compare the scientific production of institutions (universities, laboratories or journals) that could be of disparate sizes.