@article{10_4064_sm_74_2_153_168,
     author = {Tord Sj\"odin},
     title = {On $L^{p}$-differentiability and difference properties of functions},
     journal = {Studia Mathematica},
     pages = {153--168},
     publisher = {mathdoc},
     volume = {74},
     number = {2},
     year = {1982},
     doi = {10.4064/sm-74-2-153-168},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/sm-74-2-153-168/}
}