Castro Sánchez, M., Zurita Ortega, F., Chacón Cuberos, R., Padial Ruz, R., & Martínez Martínez, A. (2018). Levels of anxiety in players of the lower categories. SPORT TK-EuroAmerican Journal of Sport Sciences, 7(2), 53–60. https://doi.org/10.6018/sportk.342921