@article{MZM_1976_19_3_a12,
     author = {V. S. Serov},
     title = {Absolute convergence of {Fourier} series in eigenfunctions of an elliptic operator},
     journal = {Matemati\v{c}eskie zametki},
     pages = {435--448},
     publisher = {mathdoc},
     volume = {19},
     number = {3},
     year = {1976},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_1976_19_3_a12/}
}