González-Ruiz, J., G. Torres-Luque, A. Roca-Cruz, E. Puga González, and D. Cabello-Manrique. 2018. “Relationship Between Investment and Sports Results of Spain and the United Kingdom in the Last 20 Years (1996-2016)”. SPORT TK-EuroAmerican Journal of Sport Sciences 7 (1):157-64. https://doi.org/10.6018/322021.