@article{RM_2020_75_3_a5,
     author = {G. A. Karagulyan},
     title = {A sharp estimate for the majorant norm of a~rearranged trigonometric system},
     journal = {Trudy Matematicheskogo Instituta imeni V.A. Steklova},
     pages = {569--571},
     publisher = {mathdoc},
     volume = {75},
     number = {3},
     year = {2020},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/RM_2020_75_3_a5/}
}