Ploszaj, A., Yan, X., & Börner, K. (2020). The impact of air transport availability on research collaboration: A case study of four universities. Plos one, 15(9), e0238360. Access published article here:

Olechnicka, A., & Płoszaj, A. (2019). Running faster or measuring better? How Central and Eastern European science is catching up with Western Europe. [in]: Social and Economic Development in Central and Eastern Europe: Stability and Change after 1990, Routledge. Preprint is available here:,running-faster-2015

Olechnicka, A., Ploszaj, A., & Celińska-Janowicz, D. (2019). The geography of scientific collaboration. Routledge. Open access e-book (PDF) is available here:,the-geography-of-scientific-collaboration