@Article{ DeLSpa13b, author = { De Lellis, Camillo and Spadaro, Emanuele }, title = { Regularity of area-minimizing currents I: $L^p$ gradient estimates }, journal = { Geom. Funct. Anal. }, year = { 2014 }, volume = { 24 }, pages = { 1831–1884 }, URL = { http://cvgmt.sns.it/paper/2182/ }, note = { cvgmt preprint} }