Raúl Reina Vaíllo

Psychometric Properties of the Spanish Version of the Flow State Scale

R. J. Castuera, T. Calvo, Francisco Javier Santos-Rosa Ruano, 2008, The Spanish Journal of Psychology.

Relationship Between Motor Variability, Accuracy, and Ball Speed in the Tennis Serve

Francisco Javier Moreno Hernández, Jesús Sebastián Damas Arroyo, J. F. García, 2012, Journal of human kinetics.