L. Rodrí­guez-Yunta, “Europeana, digital libraries and repositories. Can they compete with Google as document-based search tools?”, ThinKEPI, vol. 3, pp. 052–054, Nov. 2009, Accessed: May 07, 2026. [Online]. Available: https://thinkepi.scimagoepi.com/index.php/ThinkEPI/article/view/31991