Alvariñas-Villaverde, M., López-Villar, C., Fernández-Villarino, M. A. and Alvarez-Esteban, R. (2017) “Masculine, feminine and neutral sports: Extracurricular sport modalities in practice”, Journal of Human Sport and Exercise, 12(4), pp. 1278–1288. doi: 10.14198/jhse.2017.124.14.