@article{VMUMM_1992_5_a6,
     author = {T. M. Vukolova},
     title = {On double trigonometric series with multiply monotone coefficients},
     journal = {Vestnik Moskovskogo universiteta. Matematika, mehanika},
     pages = {27--33},
     publisher = {mathdoc},
     number = {5},
     year = {1992},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VMUMM_1992_5_a6/}
}