1. An estimate for the perturbations of the solutions of ordinary differential equations (Russian);Alekseev;Vestnik Moskov. Univ. Ser. I Mat. Meh.,1961
2. Forced periodic solutions of systems of differential equations;Antosiewicz;Ann. of Math.,1953
3. On nonlinear differential equations of the second order with integrable forcing term;Antosiewicz;J. London Math. Soc.,1955
4. Stable systems of differential equations with integrable perturbation term;Antosiewicz;J. London Math. Soc.,1956
5. A survey of Lyapunov's second method;Antosiewicz;Ann. of Math. Studies,1958