@article{IM2_2013_77_6_a3,
     author = {S. N. Kudryavtsev},
     title = {A {Littlewood--Paley} type theorem and a~corollary},
     journal = {Izvestiya. Mathematics },
     pages = {1155--1194},
     publisher = {mathdoc},
     volume = {77},
     number = {6},
     year = {2013},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/IM2_2013_77_6_a3/}
}