@article{SM_1967_2_1_a4,
     author = {O. V. Besov and P. I. Lizorkin},
     title = {Singular integral operators and sequences of convolutions in $L_p$ spaces},
     journal = {Sbornik. Mathematics},
     pages = {57--76},
     publisher = {mathdoc},
     volume = {2},
     number = {1},
     year = {1967},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SM_1967_2_1_a4/}
}