JURCZAK, Jolanta. EFFECTIVENESS OF THE INNOVATION PORTFOLIO IN POLISH ENTERPRISES – RESEARCH RESULTS. Management and Administration Journal, [S. l.], v. 61, n. 134, 2024. DOI: 10.34739/zn.2023.61.18. Disponível em: https://czasopisma.uph.edu.pl/znadministracja/article/view/3471. Acesso em: 23 nov. 2024.