@article{DAN_1973_209_1_a8,
     author = {B. P. Osilenker},
     title = {On linear summability methods for {Fourier} expansions in orthonormal polynomials},
     journal = {Doklady Akademii Nauk},
     pages = {40--42},
     publisher = {mathdoc},
     volume = {209},
     number = {1},
     year = {1973},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1973_209_1_a8/}
}