@article{IVM_1982_6_a8,
     author = {K. V. Safonov},
     title = {The set of points of convergence of a~double power series},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {48--52},
     publisher = {mathdoc},
     number = {6},
     year = {1982},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_1982_6_a8/}
}