@article{DAN_1987_293_6_a5,
     author = {A. A. Pekarskii},
     title = {Direct and converse theorems of rational approximation in the spaces $L_p[-1,1]$ and $C[-1,1]$},
     journal = {Doklady Akademii Nauk},
     pages = {1307--1310},
     publisher = {mathdoc},
     volume = {293},
     number = {6},
     year = {1987},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1987_293_6_a5/}
}