Smitskikh S V

Publications in Math-Net.Ru

1. A theorem of M. G. Krein and M. A. Rutman
   
   Funktsional. Anal. i Prilozhen., 13:3 (1979),  81–82
2. Inversion of the oscillatory property of focusing operators
   
   Mat. Zametki, 20:5 (1976),  753–760