1. On the Dirichlet Problem for the Equation of a String (in Russian);Aleksandryan;DAN SSSR,1950
2. On a New Problem of Quasi-analyticity and on the Fourier Transform of Entire Functions (in Russian);Babenko;Trudy Moskov. Mat. Obshch.,1956
3. On the Eigenfunction Expansion for General Self-Adjoint Differential Operators (in Russian);Berezanskiî;DAN SSSR,1956
4. Generalization of Bochner's Theorem to Eigenfunction Expansions for Partial Differential Equations (in Russian);Berezanskiî;DAN SSSR,1956
5. On a Characteristic Property of Parabolic Systems (in Russian);Borok;DAN SSSR,1956