@article{MZM_1975_17_4_a1,
     author = {R. A. Avetisyan},
     title = {On the convergence of double {Fourier} series of discontinuous functions},
     journal = {Matemati\v{c}eskie zametki},
     pages = {501--510},
     publisher = {mathdoc},
     volume = {17},
     number = {4},
     year = {1975},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_1975_17_4_a1/}
}