1. On one theorem of G. Birkhoff;Sharkovsky;Dopovidi Ukrain. Acad. Sci.,1967
2. Topological entropy
3. Horseshoes for mappings of the interval;Misiurewicz;Bull. Acad. Pol. Sci.,1979
4. [Ef] Efremova L. S. . On the nonwandering set and the centre of triangular maps with closed set of periodic points in the base, (to appear) (Russian).
5. On ω-limit sets of discrete dynamical systems;Sharkovsky;Avtor. Dis. Dok. Phys.-Math.,1967