Recent results indicate that, in spite of the skewness of citation distributions, the ranking of research units that focus on the upper tail of citation distributions is quite similar to the ranking one obtains with average-based indicators. This paper explores the conjecture that this can be...

This paper studies the assignment of responsibility to the participants in the case of co-authored scientific publications. In the conceptual part, we establish that the key shortcoming of the full counting method is its incompatibility with the use of additively decomposable citation impact...

In this paper we investigate the characteristics of the citation distributions of the 500 universities inthe 2013 edition of the CWTS Leiden Ranking. We use a WoS dataset consisting of 3.6 million articles published in 2003-2008 with a five-year citation window, and classified into 5,119...

The usual solution to the aggregation problem of heterogeneous fields in the all-sciences case relies onthe prior normalization of the raw citations received by any publication. In this paper, we propose analternative solution that does not require any prior field-normalization. The citation...