@article{10_4064_sm_139_1_9_27,
     author = {Chang-Pao Chen},
     title = {Two-parameter {Hardy-Littlewood} inequality and its variants},
     journal = {Studia Mathematica},
     pages = {9--27},
     publisher = {mathdoc},
     volume = {139},
     number = {1},
     year = {2000},
     doi = {10.4064/sm-139-1-9-27},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/sm-139-1-9-27/}
}