Cordón-Garcí­a, José-Antonio, and Julio Alonso-Arévalo. “Mediation and Disintermediation in the Digital Environment: New Roles in the Ebook Chain”. Anuario ThinkEPI, vol. 5, Oct. 2011, pp. 121-7, https://thinkepi.scimagoepi.com/index.php/ThinkEPI/article/view/30481.