@Misc{ BreCar18, author = { Bredies, Kristian and Carioni, Marcello }, title = { Sparsity of solutions for variational inverse problems with finite-dimensional data }, journal = { Calc. Var. Partial Differential Equations }, year = { 2019 }, pages = { }, URL = { http://cvgmt.sns.it/paper/4051/ }, note = { cvgmt preprint} }