“…Despite the importance that journalistic content curation has for the study of the efficiency of the search engines and retrieval systems of news databases (increasingly more numerous), few studies have been performed in this respect in Spain. Most research was conducted at the end of the twentieth and at the beginning of the twenty‐first century (Fuentes and González, 1998; Jiménez, González and Fuentes, 1999, 2000; García and González, 2001; Crestani, De la Fuente and Vegas, 2001; Bechini, Burguillos and Diaz, 2001; Abadal, 2002; Rodríguez y Giménez, 2004; Martínez, 2008; Guallar and Abadal, 2009, 2010; Guallar, 2012; Nuño, 2014). All these authors concur that the selective retrieval of information requires documentary databases that allow for combining several search fields (both descriptive and content‐related), in order to enable users to filter and narrow down the results obtained until encountering those news pieces of real interest to them.…”