Lebedeva È B

Publications in Math-Net.Ru

1. On the theory of linear equations with periodic coefficients, close to constants, and with lag
   
   Differ. Uravn., 4:9 (1968),  1598–1607
2. The stability of quasiharmonic systems with retardation slowly changing in the time
   
   Izv. Vyssh. Uchebn. Zaved. Mat., 1968, no. 12,  53–61