Escandell-Poveda, Raquel, Mar Iglesias-Garcí­a, y Natalia Papí­-Gálvez. «Who Does SEO in Spain? A Cybermetric Methodology for the Construction of Company Universes». Profesional de la información / Information Professional 30, no. 4 (agosto 25, 2021). Accedido febrero 26, 2024. https://revista.profesionaldelainformacion.com/index.php/EPI/article/view/86331.