Kijek, T., and A. Matras-Bolibok. “INNOVATIVENESS OF EUROPEAN REGIONAL SPACE: CONVERGENCE OR DIVERGENCE?”. Acta Scientiarum Polonorum. Oeconomia, vol. 17, no. 1, Mar. 2018, pp. 59-65, doi:10.22630/ASPE.2018.17.1.7.