NIKODEMSKA-WOŁOWIK, Anna; BUGIERA, Konrad. A Concept of a Shared Guarantee Trademark in Polish Family Enterprises. Studia Oeconomica Posnaniensia, Poznan, Polska, v. 5, n. 1, p. 45–62, 2017. DOI: 10.18559/SOEP.2017.1.3. Disponível em: https://journals.ue.poznan.pl/soep/article/view/3472. Acesso em: 3 sep. 2026.