@article{DAN_1991_320_6_a7,
     author = {S. M. Sitnik},
     title = {Factorization and estimates of norms in weighted {Lebesgue} spaces
},
     journal = {Doklady Akademii Nauk},
     pages = {1326--1330},
     publisher = {mathdoc},
     volume = {320},
     number = {6},
     year = {1991},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1991_320_6_a7/}
}