@article{RLIN_1994_9_5_2_a4,
     author = {Barozzi, Elisabetta},
     title = {The {Curvature} of a {Set} with {Finite} {Area}},
     journal = {Atti della Accademia nazionale dei Lincei. Rendiconti Lincei. Matematica e applicazioni},
     pages = {149--159},
     publisher = {mathdoc},
     volume = {Ser. 9, 5},
     number = {2},
     year = {1994},
     zbl = {0809.49038},
     mrnumber = {450957},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/RLIN_1994_9_5_2_a4/}
}