Freitas SPF de, Dias CSL, Fonseca AMFLM da. Elite portuguese soccer players’ use of psychological techniques: Where, when and why. J. Hum. Sport Exerc. [Internet]. 2013 Dec. 5 [cited 2024 Apr. 16];8(3):847-60. Available from: https://www.jhse.ua.es/article/view/2013-v8-n3-elite-portuguese-soccer-players-use-of-psychological-