Emil DrĂ¡pela (2020). INFLUENCE OF BORDER EFFECT ON SUSTAINABLE DEVELOPMENT OF BORDER REGIONS AND INTERNAL PERIPHERIES. SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 20th International Multidisciplinary Scientific GeoConference Proceedings SGEM 2020, Informatics, Geoinformatics and Remote Sensing, 397-404. https://doi.org/10.5593/sgem2020/2.2/s11.047