G. Buttazzo, F. P. Maiale: Optimal one-dimensional structures for the principal eigenvalue of two-dimensional domains (Accepted Paper) 2020 G. Buttazzo, F. P. Maiale: Shape optimization problems for functionals with a boundary integral (Accepted Paper) 2020 G. Buttazzo, F. P. Maiale, B. Velichkov: Shape optimization problems in control form (Submitted Paper) 2021 K. O. Idu, V. Magnani, F. P. Maiale: Characterizations of $k$-rectifiability in homogenous groups J. Math. Anal. Appl. Vol. 500, N. 2, p. 20, 2021 F. P. Maiale, G. Tortone, B. Velichkov: Epsilon-regularity for the solutions of a free boundary system Revista Matemática Iberoamericana (Accepted Paper) 2021 F. P. Maiale, G. Tortone, B. Velichkov: The boundary Harnack principle on optimal domains Annali della Scuola Normale Superiore di Pisa, Classe di Scienze (Accepted Paper) 2021 G. Buttazzo, F. P. Maiale, D. Mazzoleni, G. Tortone, B. Velichkov: Regularity of the optimal sets for a class of integral shape functionals (Preprint) 2022 F. P. Maiale: Shape Optimization Problems and Regularity of the Free Boundaries (Ph.D. Thesis) p. 200, 2022 K. O. Idu, F. P. Maiale: $C^{1,}$-rectifiability in low codimension in Heisenberg groups (preprint) 2023