Cáceres Zapatero, María Dolores. “The Social Construction of Reality: The Role of Professionals in the Thematic Agenda Building”. Estudios Sobre El Mensaje Periodístico, vol. 17, no. 2, Jan. 2012, pp. 303-24, https://doi.org/10.5209/rev_ESMP.2011.v17.n2.38116.