Pokrovskii A N

Publications in Math-Net.Ru

1. On the question of the averaging principle
   
   Differ. Uravn., 14:2 (1978),  371–373


2. The memory of N. V. Zubov
   
   Vestnik S.-Petersburg Univ. Ser. 10. Prikl. Mat. Inform. Prots. Upr., 2011, no. 2,  97–98