GRZELAK, Maria; CIKA, Nertila; ROSZKO-WÓJTOWICZ, Elżbieta. INNOVATION ACTIVITIES OF INDUSTRIAL ENTERPRISES IN POLAND IN THE LIGHT OF PUBLIC STATISTICS. Acta Scientiarum Polonorum. Oeconomia, [S. l.], v. 16, n. 4, p. 61–70, 2017. DOI: 10.22630/ASPE.2017.16.4.45. Disponível em: https://aspe.sggw.edu.pl/article/view/306. Acesso em: 4 apr. 2025.