"Kacper Zieminski". London 2012. The London Organising Committee of the Olympic Games and Paralympic Games Limited. Archived from the original on 26 August 2012. Retrieved 19 September 2012.
"Kacper Zieminski". London 2012. The London Organising Committee of the Olympic Games and Paralympic Games Limited. Archived from the original on 26 August 2012. Retrieved 19 September 2012.