Search for: [References = "47. Więckowski M., 1999. Natural conditions for the development of the Polish\-Slovak transboundary ties. Universitas Comeniana. Acta Facultatis rerum naturalium Universitatis Comenianae. Geographica, Supplementum no. 2\-I. Bratislava\: Univerzita Komenskeho, pp. 257\-263."]