GUTIÉRREZ FERNÁNDEZ-TRESGUERRES, L. Digitalization project for the National Coal Institute’s Newsletter. Enredadera: journal of the CSIC Libraries and Archives Network, [S. l.], n. 23, p. 35–37, 2014. DOI: 10.20350/digitalCSIC/9717. Disponível em: https://enredadera.urici.csic.es/index.php/enredadera/article/view/435. Acesso em: 23 nov. 2025.