Telemark Skiing
Patrick Droste, was born in 1964, is a qualified sports instructor and a qualified telemark instructor of the DSV (German Ski Association). Ralf Strotmann, was born in 1963, works as a sports and mathematics teacher at a high school in Germany. Both authors have competed as members of the master class in national and international competitions and are leaders of the resort "Nordic skiing" at the SPORTS association for ski and sports instructors. Together they have already published two books about telemark skiing.