@article{10_4153_CJM_1971_100_1,
     author = {Walsh, T.},
     title = {On {Weighted} {Norm} {Inequalities} for {Fractional} and {Singular} {Integrals}},
     journal = {Canadian journal of mathematics},
     pages = {907--928},
     year = {1971},
     volume = {23},
     number = {5},
     doi = {10.4153/CJM-1971-100-1},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CJM-1971-100-1/}
}