Rodríguez, Javier (14 April 2019). "Alejandro Sanz, el hijo de Cádiz" [Alejandro Sanz, the son of Cádiz] (in Spanish). La Voz Digital. Retrieved 29 April 2020.
"Michael Robinson anuncia que sufre cáncer" [Michael Robinson announces he suffers from cancer]. Marca (in Spanish). 17 December 2018. Archived from the original on 18 December 2018. Retrieved 18 December 2018.
"Michael Robinson anuncia que sufre cáncer" [Michael Robinson announces he suffers from cancer]. Marca (in Spanish). 17 December 2018. Archived from the original on 18 December 2018. Retrieved 18 December 2018.