Roberto Ramajo (16 February 2023). "Barrenetxea, centenario con sólo 21 años" [Barrenetxea, centenarian at only 21 years old]. Diario AS (in Spanish). Retrieved 2 September 2023.
"El camino de las estrellas" [The way of the stars]. Noticias de Gipuzkoa (in Spanish). 24 December 2018. Archived from the original on 30 April 2019. Retrieved 24 December 2018.
"El camino de las estrellas" [The way of the stars]. Noticias de Gipuzkoa (in Spanish). 24 December 2018. Archived from the original on 30 April 2019. Retrieved 24 December 2018.