Yutkin G I

Publications in Math-Net.Ru

1. Periodic solutions, and stability of a linear differential equation with periodic coefficients
   
   Differ. Uravn., 5:11 (1969),  1990–2001
2. On the question of the distribution of zeros of the solutions of a linear differential equation
   
   Differ. Uravn., 5:10 (1969),  1821–1829