@article{AFM_2015_40_1_a5,
     author = {Ondrej Kurka},
     title = {On the variation of the {Hardy{\textendash}Littlewood} maximal function},
     journal = {Annales Fennici Mathematici},
     pages = {109--133},
     publisher = {mathdoc},
     volume = {40},
     number = {1},
     year = {2015},
     doi = {10.5186/aasfm.2015.4003},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.5186/aasfm.2015.4003/}
}