KAFEL, Piotr; JANOVIC, Jelena; KRIVOKAPIC, Zdravko; VUJOVIC, Aleksandar. Improvement, Innovation, and Learning according to the ISO 9004 Management Maturity Model. A Case Study of Polish and Montenegrin Organisations. Central and Eastern European Economic Review, Kraków, Poland, n. 9, p. 91–101, 2015. DOI: 10.15678/AOC.2013.0905. Disponível em: https://ceeer.uek.krakow.pl/index.php/aoc/article/view/628. Acesso em: 30 jun. 2026.