DĄBROWSKI, Dariusz. Different sources of market information and product innovativeness. DEMO, Cracow, v. 4, n. 3, p. 7–23, 2018. DOI: 10.18559/ebr.2018.3.2. Disponível em: https://ojs.fimagis.pl/index.php/demo/article/view/603. Acesso em: 20 birž. 2026.