@article{TRSPY_1975_134_a20,
     author = {S. B. Stechkin},
     title = {Mean values of the modulus of a~trigonometric sum},
     journal = {Informatics and Automation},
     pages = {283--309},
     publisher = {mathdoc},
     volume = {134},
     year = {1975},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TRSPY_1975_134_a20/}
}