RESZEL, Roman; GRĄDZIEL, Tadeusz; STRUPIENIUK, Zdzisław; KOTUŁA, Zdzisław; GRABOWSKI, Tadeusz. Forty Years of the Roztocze National Park. Regional Barometer. Analyses & Prognoses, [S. l.], v. 12, n. 4, p. 7–17, 2015. DOI: 10.56583/br.978. Disponível em: https://czaz.akademiazamojska.edu.pl/index.php/br/article/view/978. Acesso em: 18 jun. 2025.