@article{IM2_2007_71_1_a4,
     author = {M. G. Plotnikov},
     title = {On multiple {Walsh} series convergent over cubes},
     journal = {Izvestiya. Mathematics },
     pages = {57--73},
     publisher = {mathdoc},
     volume = {71},
     number = {1},
     year = {2007},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/IM2_2007_71_1_a4/}
}