1. Bucher, S. and Ištok, R., 2015: Geopolitická poloha Srbska ako potencialny dezintegračny činiteľ (Geopolitical Position of Serbia as a Potential for Disintegration Factor – in Slovak). In: Geograficky časopis/Geographical Journal, Vol. 67, No.1, pp. 63–83.
2. Bucher, S., 2012a: Srbský faktor v geopolitike západného Balkánu (Serbian Factor in the Geopolitics of the Western Balkans – in Slovak). In: Folia Geographica, Vol. 54, No. 19, pp. 60–74.
3. Bucher, S., 2012b: Priestorová diferenciácia národnostnej a jazykovej štruktúry z hľadiska procesu starnutia v Srbsku (Spatial Differentiation of Ethnic and Linguistic Structures in Terms of the Aging Process in Serbia – in Slovak). In: Folia Geographica, Vol. 54, No. 19, pp. 37–59.
4. European Spatial Development Perspective (ESDP): Potsdam, May 1999.
5. Friedmann, J., 1966: Regional Development Policy: A Case Study of Venezuela. Boston: M.I.T. Press.