TY - JOUR AU - Ondrej Kurka TI - On the variation of the Hardy–Littlewood maximal function JO - Annales Fennici Mathematici PY - 2015 SP - 109 EP - 133 VL - 40 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.5186/aasfm.2015.4003/ DO - 10.5186/aasfm.2015.4003 LA - en ID - AFM_2015_40_1_a5 ER -