@article{TIMM_2013_19_2_a19,
     author = {A. O. Leont'eva},
     title = {Bernstein inequality in $L_0$ for the zeroth-order derivative of trigonometric polynomials},
     journal = {Trudy Instituta matematiki i mehaniki},
     pages = {216--223},
     year = {2013},
     volume = {19},
     number = {2},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TIMM_2013_19_2_a19/}
}