BERNACKI, Leszek. Conceptual draft of a three-stage system for protection of localities of rare and threatened plants on the example of the orchid family (Orchidaceae) in Poland. Biodiversity: Research and Conservation, [S. l.], n. 1-2, p. 181–186, 2006. DOI: 10.14746/biorc.2006.1-2.37. Disponível em: https://pressto.amu.edu.pl/index.php/biorc/article/view/42219. Acesso em: 21 may. 2026.