Kuperman L M

Publications in Math-Net.Ru

1. On the theory of $\varepsilon $-controllability of linear systems with lag
   
   Differ. Uravn., 14:10 (1978),  1791–1795
2. On controllability in infinite-dimensional spaces
   
   Dokl. Akad. Nauk SSSR, 200:4 (1971),  767–769