Dumciene, A., Bileviciene, S., Sipaviciute, B. Julkaisussa Baltic Journal of Sport and Health Sciences (2020)
Reina, R., Moreno, F. J., Damas, J. S., Luis, V., Sabido, R. Julkaisussa International Journal of Computer Science in Sport (2002)
Carlstedt, R. A. Julkaisussa The Journal of the American Board of Sport Psychology (2008)