MATYJASIAK, P. Methods of valorization of natural resources. Part 1. Application in the nature protection. Studia Ecologiae et Bioethicae, [S. l.], v. 10, n. 3, p. 55–77, 2012. DOI: 10.21697/seb.2012.10.3.05. Disponível em: https://czasopisma.uksw.edu.pl/index.php/seb/article/view/6772. Acesso em: 6 jul. 2024.