SZAJT, M. Spatio-temporal Analysis of Patent Activity for European Union Regions. Studies of the Industrial Geography Commission of the Polish Geographical Society, [S. l.], v. 30, n. 3, p. 91–104, 2017. DOI: 10.24917/20801653.303.7. Disponível em: https://prace-kgp.uken.krakow.pl/article/view/3293. Acesso em: 27 apr. 2024.