@article{DAN_1975_223_2_a1,
     author = {A. N. Godunov and A. N. Solov'ev},
     title = {The {Gibbs} phenomenon and approximation properties of summation methods for {Fourier} series},
     journal = {Doklady Akademii Nauk},
     pages = {269--272},
     publisher = {mathdoc},
     volume = {223},
     number = {2},
     year = {1975},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1975_223_2_a1/}
}