Teplins’kyi, O. Y. and Teplinsky, Y. V. (1996) “On the erugin and floquet-lyapunov theorems for countable systems of difference equations”, Ukrains’kyi Matematychnyi Zhurnal, 48(2), pp. 278-284. Available at: https://umj.imath.kiev.ua/index.php/umj/article/view/5354 (Accessed: 18May2024).