Lunkevich Viktor Aleksandrovich

Publications in Math-Net.Ru

1. Quadratic zero-systems of differential equations
   
   Differ. Uravn., 25:6 (1989),  1056–1058
2. Integrals of a system with homogeneous nonlinearities of the third degree in cases of a center
   
   Differ. Uravn., 20:8 (1984),  1360–1365
3. Integrals of a general quadratic differential system in cases of the center
   
   Differ. Uravn., 18:5 (1982),  786–792
4. The problem of the center for differential equations with discontinuous right-hand sides
   
   Differ. Uravn., 4:9 (1968),  1625–1639
5. Conditions for a center in the case of homogeneous nonlinearities of third degree
   
   Differ. Uravn., 1:11 (1965),  1482–1487
6. On conditions for a center
   
   Differ. Uravn., 1:2 (1965),  176–181