@article{TRSPY_2013_280_a2,
     author = {O. V. Besov},
     title = {Kolmogorov widths of {Sobolev} classes on an irregular domain},
     journal = {Informatics and Automation},
     pages = {41--52},
     publisher = {mathdoc},
     volume = {280},
     year = {2013},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TRSPY_2013_280_a2/}
}