@article{IVM_2017_8_a1,
     author = {Vit. V. Volchkov and N. P. Volchkova},
     title = {The extension problem for functions with zero weighted spherical means},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {17--26},
     publisher = {mathdoc},
     number = {8},
     year = {2017},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_2017_8_a1/}
}