D. Casamichana Gómez and J. Castellano Paulis, “Validez y fiabilidad de dispositivos GPS de 5 Hz en carreras cortas con cambio de sentido (Validity and reliability of 5 Hz GPS devices on short career with change of direction)”, Retos, vol. 19, pp. 30–33, Jan. 2011, doi: 10.47197/retos.v0i19.34633.