  The citation distribution of a researcher shows the impact of their
production and determines the success of their scientific career. However, its
application in scientific evaluation is difficult due to the bi-dimensional
character of the distribution. Some bibliometric indexes that try to synthesize
in a numerical value the principal characteristics of this distribution have
been proposed recently. In contrast with other bibliometric measures, the
biases that the distribution tails provoke, are reduced by the h-index.
However, some limitations in the discrimination among researchers with
different publication habits are presented in this index. This index penalizes
selective researchers, distinguished by the large number of citations received,
as compared to large producers. In this work, two original sets of indexes, the
central area indexes and the central interval indexes, that complement the
h-index to include the central shape of the citation distribution, are proposed
and compared.
