@article {1999,
	title = {A Lipschitz selection from the set of minimizers of a nonconvex functional of the gradient},
	journal = {Nonlinear Analysis, Theory, Methods and Applications. Volume 37, Issue 6, September 1999, Pages 707-717},
	year = {1999},
	publisher = {SISSA},
	abstract = {A constructive and improved version of the proof that there exist a continuous map that solves the convexified problem is presented. A Lipschitz continuous map is analyzed such that a map vector minimizes the functional at each vector satisfying Cellina\\\'s condition of existence of minimum. This map is explicitly given by a direct constructive algorithm.},
	doi = {10.1016/S0362-546X(98)00067-4},
	url = {http://hdl.handle.net/1963/6439},
	author = {Gianni Dal Maso and Vladimir V. Goncharov and Antonio Ornelas}
}
