@article{VMUMM_2002_3_a11,
     author = {D. I. Sharygin},
     title = {Reduction of {Sobolev} spaces in $\mathbb{R}^n$ to {Sobolev} spaces over a two-dimensional torus $T^{2n}$},
     journal = {Vestnik Moskovskogo universiteta. Matematika, mehanika},
     pages = {60--63},
     year = {2002},
     number = {3},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VMUMM_2002_3_a11/}
}