1. Licata, I., Chiatti, L.: The archaic universe: big bang, cosmological term and the quantum origin of time. Int. J. Theor. Phys. 48, 1003–1018 (2009)
2. Penrose, R.: The Emperor’s New Mind. Oxford University Press, Oxford (1989)
3. Penrose, R.: The Road to Reality. Oxford University Press, Oxford (2004)
4. Hawking, S.W., Penrose, R.: The Nature of Space and Time. Princeton University Press, Princeton (1996)
5. Chiatti, L.: Fantappié-Arcidiacono projective theory of relativity versus recent cosmological evidences: a preliminary comparison. Electron. J. Theor. Phys. 4, 17–36 (2007)