PénzesJ. “Report on the 3rd Romanian-Bulgarian-Hungarian-Serbian Conference, Srebrno Jezero (Veliko Gradište), Serbia, 18-21 September, 2014”. Hungarian Geographical Bulletin, Vol. 63, no. 4, Dec. 2014, pp. 468-71, https://ojs.mtak.hu/index.php/hungeobull/article/view/2910.