@article{TVP_1989_34_4_a23,
     author = {R. M. Trigub},
     title = {Criterium {Based} on the {Characteristic} {Function} and the {Polya-Type} {Sign} for {Radial} {Functions} in {Several} {Variables}},
     journal = {Teori\^a vero\^atnostej i ee primeneni\^a},
     pages = {805--810},
     publisher = {mathdoc},
     volume = {34},
     number = {4},
     year = {1989},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TVP_1989_34_4_a23/}
}