@article{IM2_1995_45_1_a2,
     author = {K. Yu. Osipenko},
     title = {On~$n$-widths, optimal quadrature formulas, and optimal recovery of functions analytic in a~strip},
     journal = {Izvestiya. Mathematics},
     pages = {55--78},
     year = {1995},
     volume = {45},
     number = {1},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/IM2_1995_45_1_a2/}
}