@article{SM_2001_192_2_a3,
     author = {K. Yu. Osipenko},
     title = {On optimal recovery methods in {Hardy--Sobolev} spaces},
     journal = {Sbornik. Mathematics},
     pages = {225--244},
     publisher = {mathdoc},
     volume = {192},
     number = {2},
     year = {2001},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SM_2001_192_2_a3/}
}