@article{SM_1995_82_1_a10,
     author = {O. G. Parfenov},
     title = {Gel'fand widths of certain classes of analytic functions},
     journal = {Sbornik. Mathematics},
     pages = {223--229},
     publisher = {mathdoc},
     volume = {82},
     number = {1},
     year = {1995},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SM_1995_82_1_a10/}
}