@Article{ PraRad15a, author = { Pratelli, Aldo and Radici, Emanuela }, title = { On the piecewise approximation of bi-Lipschitz curves }, journal = { Rend. Sem. Mat. Univ. Padova }, year = { 2017 }, volume = { 138 }, pages = { 1-37 }, URL = { http://cvgmt.sns.it/paper/2690/ }, note = { cvgmt preprint} }