@article{IVM_1959_4_a3,
     author = {\'E. A. Asadullin},
     title = {Determination of the region of convergence of multiple power series},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {21--26},
     year = {1959},
     number = {4},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_1959_4_a3/}
}