TY - JOUR AU - Gianfranco Marletta AU - Fulvio Ricci TI - Two-parameter maximal functions associated with homogeneous surfaces in $ℝ^n$ JO - Studia Mathematica PY - 1998 SP - 53 EP - 65 VL - 130 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.4064/sm-130-1-53-65/ DO - 10.4064/sm-130-1-53-65 LA - en ID - 10_4064_sm_130_1_53_65 ER -