@article{MZM_2004_75_4_a0,
     author = {K. L. Avetisyan},
     title = {Inequalities of {Littlewood--Paley} {Type} for $n${-Harmonic} {Functions} on the {Polydisk}},
     journal = {Matemati\v{c}eskie zametki},
     pages = {483--492},
     publisher = {mathdoc},
     volume = {75},
     number = {4},
     year = {2004},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_2004_75_4_a0/}
}