@article {2002,
	title = {The Calibration Method for Free-Discontinuity Problems on Vector-Valued Maps},
	journal = {J. Convex Anal. 9 (2002) 1-29},
	number = {SISSA;61/2001/M},
	year = {2002},
	publisher = {Heldermann Verlag},
	abstract = {The calibration method is a classical minimality criterion, which has been recently adapted to functionals with free discontinuities by Alberti, Bouchitt{\'e}, Dal Maso. In this paper we present a further generalization of this theory to functionals defined on vector-valued maps.},
	url = {http://hdl.handle.net/1963/3049},
	author = {Maria Giovanna Mora}
}
