Lapresa, Daniel, Javier Arana, M.Teresa Anguera, J.Ignacio Pérez-Castellanos, and Mario Amatria. 2015. “Application of Logistic Regression Models in Observational Methodology: Game Formats in Grassroots Football in Initiation into Football”. Anales De Psicología / Annals of Psychology 32 (1), 288-94. https://doi.org/10.6018/analesps.32.1.186951.