Kijek, Tomasz, and Anna Matras-Bolibok. “INNOVATIVENESS OF EUROPEAN REGIONAL SPACE: CONVERGENCE OR DIVERGENCE?”. Acta Scientiarum Polonorum. Oeconomia 17, no. 1 (March 30, 2018): 59-65. Accessed May 6, 2024. https://js.wne.sggw.pl/index.php/aspe/article/view/4330.