@article{SM_2015_206_7_a2,
     author = {L. N. Galoyan and M. G. Grigoryan and A. Kh. Kobelyan},
     title = {Convergence of {Fourier} series in classical systems},
     journal = {Sbornik. Mathematics},
     pages = {941--979},
     publisher = {mathdoc},
     volume = {206},
     number = {7},
     year = {2015},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SM_2015_206_7_a2/}
}