@article{DAN_1969_184_3_a0,
     author = {A. I. Vaindiner},
     title = {On estimation of the remainder of a generalized {Fourier} series for differentiable functions of two variables},
     journal = {Doklady Akademii Nauk},
     pages = {511--513},
     publisher = {mathdoc},
     volume = {184},
     number = {3},
     year = {1969},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1969_184_3_a0/}
}