@article{ASNSP_2007_5_6_4_499_0,
     author = {Peletier, Mark A. and Planqu\'e, Robert and R\"oger, Matthias},
     title = {Sobolev regularity via the convergence rate of convolutions and {Jensen's} inequality},
     journal = {Annali della Scuola Normale Superiore di Pisa - Classe di Scienze},
     pages = {499--510},
     publisher = {Scuola Normale Superiore, Pisa},
     volume = {Ser. 5, 6},
     number = {4},
     year = {2007},
     mrnumber = {2394408},
     zbl = {1185.46026},
     language = {en},
     url = {http://archive.numdam.org/item/ASNSP_2007_5_6_4_499_0/}
}