1. Representation of functions by multiple series;Arutyunyan;Akad. Nauk Armyan. SSR Dokl.,1977
2. On Kolmogorov's rearrangement problem for orthogonal systems and Garsia's conjecture;Bourgain,1989
3. A certain complete orthonormal system;Kashin;Mat. Sb.,1976
4. ON A COMPLETE ORTHONORMAL SYSTEM
5. On some properties of orthogonal systems of convergence;Kashin;Trudy Mat. Inst. Steklov,1977