Are firms withdrawing from basic research? An analysis of firm-level publication behaviour in Germany. - Bastian Krieger; Maikel Pellens; Knut Blind; Sonia Gruber; Torben Schubert (Scientometrics, 2021)

Impact of classification granularity on interdisciplinary performance assessment of research institutes and organizations. - Jiandong Zhang; Sonia Gruber; Rainer Frietsch (J. Data Inf. Sci., 2025)

How do intra- and inter-organisational collaboration affect research performance? Evidence from German universities. - Cecilia Garcia Chavez; Sonia Gruber; Torben Schubert (J. Informetrics, 2025)

The definition of highly cited researchers: the effect of different approaches on the empirical outcome. - Rainer Frietsch; Sonia Gruber; Lutz Bornmann (Scientometrics, 2025)