1. Multiple Fourier series and Fourier integral;Alimov;Encyclopedia of mathematical sciences,1991
2. Fractional orders of the elliptic operators and isomorphism of the class of differentiable functions;Alimov;Differential Equations,1972
3. On uniform convergence of expansions by eigenfunctions on a whole closed domain;Il’in;Mat. Sb.,1958
4. Asymptotic near the boundary of spectral functions of elliptic self-adjoint boundary problems;Eskin;Isr. J.Math.,1975
5. Uniformly convergence of some spectral expansions in closed domain;Moiseev;Dokl.Akad. Nauk SSSR,1977