Węckowski, Dawid Grzegorz, and Tomasz Kaczmarek. “Varability in the Content of Internet Forums”. Studia Oeconomica Posnaniensia 1, no. 5 (May 31, 2013): s. 80–95. Accessed September 3, 2026. https://journals.ue.poznan.pl/soep/article/view/3216.