SŁAWEK, Tadeusz. Questionnaire - Answer. Polish Journal of Landscape Studies, [S. l.], v. 1, n. 1, p. 143–147, 2019. DOI: 10.14746/pls.2018.1.20. Disponível em: https://pressto.amu.edu.pl/index.php/pls/article/view/17675. Acesso em: 29 grudz. 2024.