@article{ZNSL_2012_404_a15,
     author = {V. A. Shlyk},
     title = {The spherical symmetrization and {NED-sets} on a~hyperplane},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {248--258},
     publisher = {mathdoc},
     volume = {404},
     year = {2012},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_2012_404_a15/}
}