1. Mountain Rescue Teams see Spike in Lake District Call Outs. The Mail. Unter: http://www.nwemail.co.uk/news/lakes/16422669.mountain-rescue-teams-see-spike-in-lake-district- call-outs/ (letzter Zugriff: 12.04.2023).
2. Helicopter Rescues Increasing on Everest. National Public Radio. Unter: https://www.npr.org/2012/05/23/153519646/helicopter-rescues-increasing-on-everest (letzter Zugriff: 12.04.2023).
3. Walkers Who Call Out Emergency Helicopters For A Lift Blow Mountain Rescue Budgets in Sweden. The Local SE. Unter: https://www.thelocal.se/20170814/walkers-who-call-out-emergency-helicopters-for-a-lift-blow-mountain-rescue-budgets-in-sweden. (letzter Zugriff: 12.04.2023).
4. Gosselin B. Making Sense Of The Numbers. Understanding The Climbing Rope Rating System. Vertical addiction. Unter: https://www.vertical-addiction.com/us/blogs/blog/climbing-rope-specs/ (letzter Zugriff: 28.02.2023).
5. Patterns of Death Among Avalanche Fatalities: a 21-Year Review;Boyd;CMAJ.,2009