1. Amselek, Paul, 1993. Les règles juridiques en tant qu’objets mentaux. Archiv für Rechts- und Sozialphilosophie, 79, 3:311-20.
2. Bobbio, Norberto, 1958. Teoria della norma giuridica. Torino: Giappichelli.
3. Bühler, Karl, 1934. Sprachtheorie. Die Darstellungsfunktion der Sprache. Jena: Gustav Fischer. Traduzione italiana di Serena Cattaruzza Derossi: Teoria del linguaggio. La funzione rappresentativa del linguaggio. Roma: Armando Editore, 1983.
4. Caraban, Ana, Evangelos Karapanos, Daniel Gonçalves, & Pedro Campos, 2019. 23 Ways to Nudge: A Review of Technology-Mediated Nudging in Human-Computer Interaction. In Proceedings of the 2019 CHI Conference on Human Factors in Computing Systems. New York, NY, USA: Association for Computing Machinery.
5. Cassirer, Ernst, 1944. An Essay on Man: An Introduction to a Philosophy of Human Culture. New Haven, CT: Yale University Press.