1. Free Heel Skiing;Parker,1995
2. Downhill skiing is developing: Snowboard and telemark skiing give new injury patterns;Jorgsholm;Lakartidningen,1991
3. Telemark skiing injuries;Tuggy;J Sports Med Phys Fitness,1996
4. Injuries in long distance, cross country, and downhill skiing;Westlin;Orthop Clin North Am,1976
5. Ski injuries in Sweden: A one year survey;Eriksson;Orthop Clin North Am,1976