On Earth With James Cracknell — Toughest Race

: Published in the journal Environment and Planning D: Society and Space (2016), with an online version appearing in 2015.

: Exotic endurance: Tourism, fitness and the Marathon des Sables . Toughest Race On Earth With James Cracknell

The reference to a "paper" in relation to refers to an academic journal article titled "Exotic endurance: Tourism, fitness and the Marathon des Sables" by Debbie Lisle. The Academic Paper : Published in the journal Environment and Planning

The "Toughest Race" mentioned is the , a 251-km (approx. 156-mile) ultramarathon in the Sahara Desert. Toughest Race On Earth With James Cracknell