1. Araújo, J., Cameron, P.J., Steinberg, B.: Between primitive and 2-transitive: synchronization and its friends. EMS Surv. Math. Sci. 4(2), 101–184 (2017). http://www.ems-ph.org/doi/10.4171/EMSS
2. Babai, L.: Automorphism Groups, Isomorphism, pp. 1447–1540. Reconstruction. MIT Press, Cambridge, MA, USA (1996)
3. Berstel, J., Perrin, D., Reutenauer, C.: Codes and Automata, Encyclopedia of mathematics and its applications, vol. 129. Cambridge University Press, Cambridge (2010)
4. Lecture Notes in Computer Science;EA Bondar,2016
5. Lecture Notes in Computer Science;EA Bondar,2018