@article{CRMATH_2015__353_4_327_0,
     author = {Spector, Daniel},
     title = {$ {L}^{p}${-Taylor} approximations characterize the {Sobolev} space $ {W}^{1,p}$},
     journal = {Comptes Rendus. Math\'ematique},
     pages = {327--332},
     publisher = {Elsevier},
     volume = {353},
     number = {4},
     year = {2015},
     doi = {10.1016/j.crma.2015.01.010},
     language = {en},
     url = {http://archive.numdam.org/articles/10.1016/j.crma.2015.01.010/}
}