@article{DAN_1968_181_6_a4,
     author = {I. K. Kendzhaev},
     title = {The absolute and uniform convergence of {Fourier} series in the eigenfunctions of a second order self-adjoint elliptic operator},
     journal = {Doklady Akademii Nauk},
     pages = {1317--1319},
     publisher = {mathdoc},
     volume = {181},
     number = {6},
     year = {1968},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1968_181_6_a4/}
}