@article{TM_1987_180_a14,
     author = {M. P. Barykin and Ya. S. Bugrov and A. P. Uninskij},
     title = {On inequalities for trigonometric polynomials},
     journal = {Trudy Matematicheskogo Instituta imeni V.A. Steklova},
     pages = {39--41},
     publisher = {mathdoc},
     volume = {180},
     year = {1987},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TM_1987_180_a14/}
}