1. Lungarella, M., Iida, F., Bongard, J.C., Pfeifer, R.: AI in the 21st century – with historical reflections. In: Lungarella, M., Iida, F., Bongard, J., Pfeifer, R. (eds.) 50 Years of Artificial Intelligence. LNCS, vol. 4850, pp. 1–8. Springer, Heidelberg (2007). https://doi.org/10.1007/978-3-540-77296-5_1
2. Tugui, A., Danciulescu, D., Subtirelu, M.: The biological as a double limit for artificial intelligence: review and futuristic debate. Int. J. Comput. Commun. Control 14(2), 253–271 (2019). https://doi.org/10.15837/ijccc.2019.2.3536
3. McCarthy, J.: http://jmc.stanford.edu/index.html. Accessed 20 July 2023
4. McCarthy, J.: What is artificial intelligence? Stanford University. http://www-formal.stanford.edu/jmc/. Accessed 20 July 2023
5. Kurzweil, R.: The Age of Spiritual Machines. Penguin, New York (1999). Kurzweil, R.: The Age of Spiritual Machines: When Computers Exceed Human Intelligence. Viking Press, London (1999). ISBN 0-670-88217-8