@article{ZNSL_2020_491_a1,
     author = {V. Borovitskiy},
     title = {Littlewood--Paley--Rubio de {Francia} inequality for the two-parameter {Walsh} system},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {27--42},
     publisher = {mathdoc},
     volume = {491},
     year = {2020},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_2020_491_a1/}
}