Vul'pe I M

Publications in Math-Net.Ru

1. Averaging of partial differential equations with respect to independent variables
   
   Differ. Uravn., 18:11 (1982),  1887–1893
2. The determination of periodic solutions of nonlinear systems by the averaging method
   
   Differ. Uravn., 14:9 (1978),  1558–1565
3. Generalization of the averaging method of N. N. Bogolyubov to certain classes of differential equations without mean values
   
   Izv. Vyssh. Uchebn. Zaved. Mat., 1973, no. 12,  28–32
4. A certain theorem of Erugin
   
   Differ. Uravn., 8:12 (1972),  2156–2162