1. Theory of Retracts;Borsuk,1967
2. Lectures on Mathematical Theory of Stability;Demidowitsch,1967
3. On existence of 0-curves of certain singular system of differential equations;Diblík;Math. Nachr.,1985
4. On the question of applicability of Ważewski's topological method;Diblík;Soviet Math. Dokl.,1985
5. Ordinary Differential Equations;Hartman,1964