@article{DAN_1975_223_1_a4,
     author = {T. G. Genchev},
     title = {A generalization of {S.\,N.~Bernstein's} inequality for trigonometric polynomials},
     journal = {Doklady Akademii Nauk},
     pages = {23--26},
     publisher = {mathdoc},
     volume = {223},
     number = {1},
     year = {1975},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1975_223_1_a4/}
}