@Article{ LuSle13, author = { Lu, Xin Yang and SlepĨev, Dejan }, title = { Properties of minimizers of average-distance problem via discrete approximation of measures }, journal = { SIAM J. Math. Anal. }, year = { 2013 }, volume = { 45 }, number = { 5 }, pages = { 3114-3131 }, URL = { http://cvgmt.sns.it/paper/2285/ }, note = { cvgmt preprint} }