1. Research Group Sport Psychology and Mental Support, Vrije Universiteit Brussel, Brussels, Belgium
2. Departament de Psicologia Bàsica, Universitat Autònoma de Barcelona, Barcelona, Spain
3. Research Centre Human Movement and Education, Windesheim University of Applied Sciences, Zwolle, The Netherlands
4. Elite athletes Division, National Institute of Sport Expertise and Performance, Paris, France
5. Fakulteta za sport, Univerza v Ljubljani, Ljubljana, Slovenia