@article{TM_2001_232_a17,
     author = {D. A. Labutin},
     title = {Sharpness of {Sobolev} {Inequalities} for {a~Class} of {Irregular} {Domains}},
     journal = {Trudy Matematicheskogo Instituta imeni V.A. Steklova},
     pages = {218--222},
     year = {2001},
     volume = {232},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TM_2001_232_a17/}
}