@article{MZM_1970_8_6_a14,
     author = {Ya. S. Bugrov},
     title = {Boundedness of trigonometric integrals and polynomials in the $L$ metric},
     journal = {Matemati\v{c}eskie zametki},
     pages = {811--822},
     year = {1970},
     volume = {8},
     number = {6},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_1970_8_6_a14/}
}