Pérez Jiménez JC. Bruce Mazlish: The Fourth Discontinuity. The Co-Evolution of Humans and Machines. Yale University Press, New Haven y Londres, 1993. Foro interno. 2001;1:155-156. Accessed July 19, 2026. https://revistas.ucm.es/index.php/FOIN/article/view/FOIN0101110155A