@article{VMUMM_2020_5_a1,
     author = {T. M. Vukolova and B. V. Simonov},
     title = {Properties of sums of double trigonometric series with multiply monotone coefficients},
     journal = {Vestnik Moskovskogo universiteta. Matematika, mehanika},
     pages = {8--22},
     publisher = {mathdoc},
     number = {5},
     year = {2020},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VMUMM_2020_5_a1/}
}