Prigorskii V A

Publications in Math-Net.Ru

1. Chains of projectors, similar to orthogonal
   
   Funktsional. Anal. i Prilozhen., 1:4 (1967),  86–87
2. On some classes of bases in Hilbert space
   
   Uspekhi Mat. Nauk, 20:5(125) (1965),  231–236