The technique of skating /
Hügin, Otto,author.
Gerschwiler, Jack,author
Simons, A. D.,translator.
Christie, John Simpson,former owner.StEdNL
Originally published in German as: Eiskunstlaufen. Thun : Ott Verlag, 1973.
Recommended by the Swiss Skating Association and the Association of Swiss Skating Instructors."