1. Weil, H.: Symmetry, p. 192c. Nauka, Moscow (1968)
2. Shubnikov, A.V., Koptsik, V.A.: Symmetry in Science and Art, 560p. Computer Research Institute, Moscow-Ijevsk (2004)
3. Gregory, R.L.: A reasonable eye, 232 p. Editorial URSS (2003)
4. Fress, P., Piaget, J.: Experimental Psychology, Issue 4, Progress, Moscow, 344 p. (1978)
5. Hamada, J., Amano, K., Fukuda, S.T., Uchiumi, C., Fukushi, K., van der Helm, P.A.: A group theoretical model of symmetry cognition. Acta Psychol. 171, 128–137 (2016).
https://doi.org/10.1016/j.actpsy.2016.10.002