Karasik G Ya

Publications in Math-Net.Ru

1. On the existence of periodic solutions of a system of differential equations with retarded argument
   
   Sibirsk. Mat. Zh., 2:4 (1961),  551–555
2. The small-parameter method for iteration systems
   
   Izv. Vyssh. Uchebn. Zaved. Mat., 1960, no. 5,  74–85
3. Conditions for the existence of a periodic solution of finite-difference equations
   
   Izv. Vyssh. Uchebn. Zaved. Mat., 1959, no. 4,  70–79