T. Küpper, D. Hillebrandt, J. Milledge, and B. Basnayt, “Model Contract for Health Care on Trekking and Expeditions for Doctors – Recommendation of the Medical Commission of the Union Internationale des Associations d’Alpinisme (UIAA)”, Health Prom Phys Act, vol. 13, no. 4, pp. 14–17, Dec. 2020.