@article {2009,
	title = {A higher order model for image restoration: the one dimensional case},
	journal = {SIAM J. Math. Anal. 40 (2009) 2351-2391},
	number = {SISSA;66/2008/M},
	year = {2009},
	abstract = {The higher order total variation-based model for image restoration proposed by Chan, Marquina, and Mulet in [6] is analyzed in one dimension. A suitable functional framework in which the minimization problem is well posed is being proposed and it is proved analytically that the\\nhigher order regularizing term prevents the occurrence of the staircase effect. The generalized version of the model considered here includes, as particular cases, some curvature dependent functionals.},
	doi = {10.1137/070697823},
	url = {http://hdl.handle.net/1963/3174},
	author = {Gianni Dal Maso and Irene Fonseca and Giovanni Leoni and Massimiliano Morini}
}
@article {2004,
	title = {Higher order quasiconvexity reduces to quasiconvexity},
	journal = {Arch. Ration. Mech. Anal. 171 (2004) 55-81},
	number = {SISSA;41/2003/M},
	year = {2004},
	publisher = {Springer},
	abstract = {In this paper it is shown that higher order quasiconvex functions suitable in the variational treatment of problems involving second derivatives may be extended to the space of all matrices as classical quasiconvex functions. Precisely, it is proved that a smooth strictly 2-quasiconvex function with p-growth at infinity, p>1, is the restriction to symmetric matrices of a 1-quasiconvex function with the same growth. As a consequence, lower semicontinuity results for second-order variational problems are deduced as corollaries of well-known first order theorems.},
	doi = {10.1007/s00205-003-0278-1},
	url = {http://hdl.handle.net/1963/2911},
	author = {Gianni Dal Maso and Irene Fonseca and Giovanni Leoni and Massimiliano Morini}
}
