Jørgen Danielsen

Imitation jumps in ski jumping: Technical execution and relationship to performance level

Gertjan Ettema, Steinar Braaten, Jørgen Danielsen, 2020, Journal of sports sciences.

Mechanical Energy and Propulsion in Ergometer Double Poling by Cross-country Skiers.

Øyvind Sandbakk, Hans-Christer Holmberg, Gertjan Ettema, 2015, Medicine and science in sports and exercise.