  Citation and publication profiles are gaining importance for the evaluation
of top researchers when it comes to the appropriation of funding for excellence
programs or career promotion judgments. Indicators like the Normalized Mean
Citation Rate, the hindex or other distinguishing measures are increasingly
used to picture the characteristics of individual scholars. Using bibliometric
techniques for individual assessment is known to be particularly delicate, as
the chance of errors being averaged away becomes smaller whereas a minor
incompleteness can have a significant influence on the evaluation outcome. The
quality of the data becomes as such crucial to the legitimacy of the methods
used.
