1. Adler, R.L., Konheim, A.G., McAndrew, M.H.: Topological entropy. Trans. Am. Math. Soc. 114, 309–319 (1965)
2. Balibrea, F., Oprocha, P.: Weak mixing and chaos in nonautonomous discrete systems. Appl. Math. Lett. 25(8), 1135–1141 (2012)
3. Bowen, R.: Entropy for group endomorphisms and homogeneous spaces. Trans. Am. Math. Soc. 153, 401–414 (1971)
4. Cánovas, J.S.: Progress and Challenges in Dynamical Systems. On entropy of nonautonomous discrete systems, pp. 143–159. Springer, Berlin (2013)
5. Dinaburg, E.I.: The relation between topological entropy and metric entropy. Dokl. Akad. Nauk SSSR 190, 19???22 (1970);