Vieira, Miguel (9 November 2011). "Mário Silva demite-se do Boavista" [Mário Silva resigns at Boavista]. Record (in Portuguese). Archived from the original on 3 September 2012. Retrieved 17 December 2012.
Vieira, Miguel (9 November 2011). "Mário Silva demite-se do Boavista" [Mário Silva resigns at Boavista]. Record (in Portuguese). Archived from the original on 3 September 2012. Retrieved 17 December 2012.