Guíu Carrera M, Leyton Román M. Perfil psicológico en corredores de ultramaratón (Psychological profile in ultramarathon runners). Retos [Internet]. 2019 Jul. 1 [cited 2026 Jun. 10];36:310-7. Available from: https://www.revistaretos.org/index.php/retos/article/view/69119