[2]Arkiveret 19. november 2016 hos Wayback Machine The Carpathian Project: Carpathian Mountains in Serbia, Institute for Spatial Planning, Faculty of Geography, University of Belgrade (2008), Retrieved: 15 November 2016
[3]Arkiveret 1. august 2019 hos 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), Retrieved 15 November 2016
visiteurope.com
[1]Arkiveret 12. oktober 2017 hos Wayback Machine "The Carpathians" European Travel Commission, in The Official Travel Portal of Europe, Retrieved 15 November 2016
web.archive.org
[1]Arkiveret 12. oktober 2017 hos Wayback Machine "The Carpathians" European Travel Commission, in The Official Travel Portal of Europe, Retrieved 15 November 2016
[2]Arkiveret 19. november 2016 hos Wayback Machine The Carpathian Project: Carpathian Mountains in Serbia, Institute for Spatial Planning, Faculty of Geography, University of Belgrade (2008), Retrieved: 15 November 2016
[3]Arkiveret 1. august 2019 hos 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), Retrieved 15 November 2016