Koval' P I

Publications in Math-Net.Ru

1. On the asymptotic behaviour of solutions of linear difference equations and linear differential equations
   
   Dokl. Akad. Nauk SSSR, 114:5 (1957),  949–952
2. Reducible systems of difference equations and stability of their solutions
   
   Uspekhi Mat. Nauk, 12:6(78) (1957),  143–146
3. On Stieltjes integrals
   
   Uspekhi Mat. Nauk, 4:6(34) (1949),  190–193