TY - JOUR AU - Tord Sjödin TI - Weighted norm inequalities for Riesz potentials and fractional maximal functions in mixed norm Lebesgue spaces JO - Studia Mathematica PY - 1990 SP - 239 EP - 244 VL - 97 IS - 3 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.4064/sm-97-3-239-244/ DO - 10.4064/sm-97-3-239-244 LA - en ID - 10_4064_sm_97_3_239_244 ER -