WĘCKOWSKI, Dawid Grzegorz; KACZMAREK, Tomasz. Varability in the Content of Internet Forums. Studia Oeconomica Posnaniensia, Poznan, Polska, v. 1, n. 5, p. s. 80–95, 2013. DOI: 10.18559/54ecxh10. Disponível em: https://journals.ue.poznan.pl/soep/article/view/3216. Acesso em: 3 sep. 2026.