^"Karlo Hmeljak". London 2012. The London Organising Committee of the Olympic Games and Paralympic Games Limited. Archived from the original on 26 August 2012. Retrieved 13 September 2012.
^"Karlo Hmeljak Bio, Stats, and Results". Olympics at Sports-Reference.com. Archived from the original on 2020-04-18. Retrieved 2015-05-27.