TY - JOUR AU - Chang-Pao Chen TI - Two-parameter Hardy-Littlewood inequality and its variants JO - Studia Mathematica PY - 2000 SP - 9 EP - 27 VL - 139 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.4064/sm-139-1-9-27/ DO - 10.4064/sm-139-1-9-27 LA - en ID - 10_4064_sm_139_1_9_27 ER -