@article{VSGTU_2011_2_a1,
     author = {A. V. Gil and A. I. Zadorozhnyi and V. A. Nogin},
     title = {Estimates for some convolution operators with singularities of their kernels on spheres},
     journal = {Journal of Samara State Technical University, Ser. Physical and Mathematical Sciences},
     pages = {17--23},
     publisher = {mathdoc},
     number = {2},
     year = {2011},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VSGTU_2011_2_a1/}
}