en[2] The Carpathian Project: Carpathian Mountains in Serbia, Institute for Spatial Planning, Faculty of Geography, University of Belgrade (2008), accesat la 31 octombrie 2017
en[4] "Sacred Language of the Vlach Bread", Paun es Durlic, Balkankult (2011), accesat la 31 octombrie 2017
nhmbeo.rs
en[3]Arhivat în , la Wayback Machine. Bulletin of the Natural History Museum, pg. 54, Valuing the geological heritage of Serbia (UDC: 502.171:55(497.11), Aleksandra Maran (2010), accesat la 31 octombrie 2017
visiteurope.com
en[1] "The Carpathians" European Travel Commission, in The Official Travel Portal of Europe, accesat la 31 octombrie 2017
en[3]Arhivat în , la Wayback Machine. Bulletin of the Natural History Museum, pg. 54, Valuing the geological heritage of Serbia (UDC: 502.171:55(497.11), Aleksandra Maran (2010), accesat la 31 octombrie 2017