20 February 1980 - Institutional correspondence A letter from Ricardo de la Cierva Hoces to Adolfo Suárez
Madrid, 28 June 1980 - Institutional correspondence Ricardo de la Cierva Hoces' letter to Javier Tusell
21 December 2014 - Photograph Demonstration againt the Ley de Seguridad Ciudadana, also known as "ley mordaza"