Mellado, C.; Vargas, M. S. The Influence of the Thematic Beat in the Presence of the Civic and the Infotainment Journalistic Roles in the Chilean Press: A Crosslongitudinal Study Between 1990 and 2010. Estud. mensaje periodís. 2018, 24 (1), 283-294. https://doi.org/10.5209/ESMP.59950.