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In this paper we study the regularity of the local minima of integralfunctionals: in particular, not convexity (quasi-convexity, policonvexity orrank one convexity) hypothesis will be made on the density, neither structurehypothesis nor radial nor diagonal.

On the local everywhere H\"older continuity for weak solutions of a class of not convex vectorial problems of the Calculus of Variations