@article{JMAG_2013_9_1_a2,
     author = {T. Oikhberg and M. I. Ostrovskii},
     title = {Dependence of {Kolmogorov} {Widths} on the {Ambient} {Space}},
     journal = {\v{Z}urnal matemati\v{c}eskoj fiziki, analiza, geometrii},
     pages = {25--50},
     year = {2013},
     volume = {9},
     number = {1},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/JMAG_2013_9_1_a2/}
}