@article{10_4064_sm_82_1_1_16,
     author = {E. Sawyer},
     title = {Weighted inequalities for the two-dimensional {Hardy} operator},
     journal = {Studia Mathematica},
     pages = {1--16},
     year = {1985},
     volume = {82},
     number = {1},
     doi = {10.4064/sm-82-1-1-16},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/sm-82-1-1-16/}
}