@article{MZM_1973_13_3_a1,
     author = {M. Bakhbukh},
     title = {Convergence of double series},
     journal = {Matemati\v{c}eskie zametki},
     pages = {341--350},
     publisher = {mathdoc},
     volume = {13},
     number = {3},
     year = {1973},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_1973_13_3_a1/}
}