TY - JOUR AU - W. Jurkat AU - J. Troutman TI - A mean value inequality for positive integral transformations with application to a maximal theorem JO - Studia Mathematica PY - 1981 SP - 227 EP - 233 VL - 69 IS - 3 UR - http://geodesic.mathdoc.fr/articles/10.4064/sm-69-3-227-233/ DO - 10.4064/sm-69-3-227-233 LA - en ID - 10_4064_sm_69_3_227_233 ER -