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2. Hottinger, K.: Schuss the slopes in a Smith Sled. Sports ’N Spokes, 6-7, 1980.
3. Rappoport, A.: Skiing by the seat of your pants. Sports ‘X Spokes, 8-13, 1981.
4. Paraplegics gain the freedom of the ski slopes;Warren;Model Systems’ SCI News Briefs,1980