@article{SM_2002_193_3_a5,
     author = {G. G. Magaril-Il'yaev and K. Yu. Osipenko},
     title = {Optimal recovery of functions and their derivatives from {Fourier} coefficients},
     journal = {Sbornik. Mathematics},
     pages = {387--407},
     year = {2002},
     volume = {193},
     number = {3},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SM_2002_193_3_a5/}
}