"Breve enciclopedia numantina" [Brief numantina encyclopedia]. Desde Soria (in Spanish). 29 May 2013. Retrieved 14 October 2019.
diariodejerez.es
Lamparero, D. (18 February 2009). "Números de primera" [Top-flight numbers]. Diario de Jerez (in Spanish). Retrieved 2 February 2023.
diariodemallorca.es
Adrover, S. (21 September 2009). "Julio Álvarez olvida su pesadilla" [Julio Álvarez forgets his nightmare]. Diario de Mallorca (in Spanish). Retrieved 18 September 2018.
Castellón, Alejandro (20 July 2018). "Julio Álvarez se retira del fútbol" [Julio Álvarez retires from football] (in Spanish). Unión Rayo. Retrieved 18 September 2018.