Pavlyuk I A

Publications in Math-Net.Ru

1. Asymptotic integration of certain classes of nonautonomous systems of differential equations by means of differential invariants
   
   Differ. Uravn., 6:6 (1970),  975–988
2. The investigation of nonautonomous systems of second order differential equations by means of differential invariants
   
   Differ. Uravn., 4:10 (1968),  1785–1800