@article{MAN_1935__110_159726,
     author = {A.S. Besicovitch},
     title = {Sets of points of non-differentiability of absolutely continuous functions and of divergence of {Fej\'er} sums. {(On} linear sets of fractional dimensions {III)}},
     journal = {Mathematische Annalen},
     pages = {331--335},
     publisher = {mathdoc},
     volume = {110},
     year = {1935},
     zbl = {0010.01405},
     url = {http://geodesic.mathdoc.fr/item/MAN_1935__110_159726/}
}