1. Alberti G., Bouchitté G., Dal Maso G., The calibration method for the Mumford-Shah functional, (in preparation).
2. Existence theory for a new class of variational problems;Ambrosio;Arch. Rational Mech. Anal.,1990
3. Ambrosio L., Fusco N., Pallara D., Special Functions of Bounded Variation and Free-Discontinuity Problems, Oxford Univ. Press, (in preparation).
4. Existence theorem for a minimum problem with free discontinuity;De Giorgi;Arch. Rational Mech. Anal.,1989
5. Real flat chains cochains and variational problems;Federer;Indiana Univ. Math. J.,1974