  Although bibliometrics has been a separate research field for many years,
there is still no uniformity in the way bibliometric analyses are applied to
individual researchers. Therefore, this study aims to set up proposals how to
evaluate individual researchers working in the natural and life sciences. 2005
saw the introduction of the h index, which gives information about a
researcher's productivity and the impact of his or her publications in a single
number (h is the number of publications with at least h citations); however, it
is not possible to cover the multidimensional complexity of research
performance and to undertake inter-personal comparisons with this number. This
study therefore includes recommendations for a set of indicators to be used for
evaluating researchers. Our proposals relate to the selection of data on which
an evaluation is based, the analysis of the data and the presentation of the
results.
