@article{SM_1997_188_8_a9,
     author = {O. G. Parfenov},
     title = {Widths of the unit ball in $H^\infty$ in weighted spaces~$L_q(\mu)$},
     journal = {Sbornik. Mathematics},
     pages = {1259--1267},
     publisher = {mathdoc},
     volume = {188},
     number = {8},
     year = {1997},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SM_1997_188_8_a9/}
}