BIGA, Bartłomiej. E-reading in Poland: Challenges and problems in new business models, public policies and copyright. Journal of Public Governance, Poland, v. 36, n. 2, p. 59–69, 2016. DOI: 10.15678/ZP.2016.36.2.04. Disponível em: https://zpub.uek.krakow.pl/zpub/article/view/388.. Acesso em: 7 may. 2025.