G. Buttazzo, P. Trebeschi: The Role of Monotonicity in Some Shape Optimization Problems () 1998 D. Bucur, G. Buttazzo, P. Trebeschi: An Existence Result for Optimal Obstacles () 1998 P. Trebeschi: Esistenza di Soluzioni in Problemi di Ottimizzazione di Forma e Ostacoli (Ph.D. Thesis) 1998 D. Bucur, P. Trebeschi: Shape Optimization Problems Governed by Nonlinear State Equations () 1998 G. Dal Maso, P. Trebeschi: $\Gamma$-limit of Periodic Obstacles Acta Appl. Math. Vol. 65, p. 207-215, 2001 A. Giacomini, P. Trebeschi: A density result for Sobolev spaces in dimension two, and applications to stability of nonlinear Neumann problems J. Differential Equations Vol. 237, p. 27-60, 2007 D. Bucur, A. Giacomini, P. Trebeschi: The Robin-Laplacian problem on varying domains Calc. Var. Partial Differential Equations Vol. 55, p. 55-133, 2016 D. Bucur, A. Giacomini, P. Trebeschi: Best constant in Poincaré inequalities with traces: a free discontinuity approach (Submitted Paper) 2017 D. Bucur, A. Giacomini, P. Trebeschi: $L^\infty$ bounds of Steklov eigenfunctions and spectrum stability under domain variation (Submitted Paper) 2019 D. Bucur, A. Giacomini, P. Trebeschi: Stability results for the Robin Laplacian on nonsmooth domains (Submitted Paper) 2021