MACIEJEWSKI, Jędrzej. Book Markets in Europe: Facing the Challenges of the Digital Single Market. Comparative Economic Research. Central and Eastern Europe, [S. l.], v. 22, n. 2, p. 173–187, 2019. DOI: 10.2478/cer-2019-0019. Disponível em: https://czasopisma.uni.lodz.pl/CER/article/view/5281. Acesso em: 8 dec. 2025.