Kurganskyy O. M. «Reachability problem for continuous piece-wise-affine mappings of a circle having degree 2» // Applied Discrete Mathematics 2014. №7 (Приложение) C.26-28
Kurganskyy O. M. «Reachability problem for continuous piece-wise-affine mappings of a circle having degree 2» // 2014. №7 C.26-28
