Author: Kalas, Josef

Kalas, Josef: Nonuniqueness results for ordinary differential equations. (English). Czechoslovak Mathematical Journal, vol. 48 (1998), issue 2, pp. 373-384
Kalas, Josef: Contributions to the asymptotic behaviour of the equation $\dot z=f(t,z)$ with a complex-valued function $f$. (English). Czechoslovak Mathematical Journal, vol. 40 (1990), issue 1, pp. 31-45
Kalas, Josef: On certain asymptotic properties of the solutions of the equation $\dot z=f(t,z)$ with a complex-valued function $f$. (English). Czechoslovak Mathematical Journal, vol. 33 (1983), issue 3, pp. 390-407
Kalas, Josef: Nonuniqueness for the solutions of ordinary differential equations. (English). Czechoslovak Mathematical Journal, vol. 29 (1979), issue 1, pp. 105-112