SEWERNIAK, Janusz. Geography of tourism and spatial planning in Poland in the 90’s. Turyzm/Tourism, [S. l.], v. 1, n. 2, p. 66–67, 1991. DOI: 10.18778/0867-5856.1.2.06. Disponível em: https://czasopisma.uni.lodz.pl/tourism/article/view/10874. Acesso em: 6 jul. 2024.