L. Ferreri, G. Verzini:
Asymptotic properties of an optimal principal eigenvalue with spherical  weight and Dirichlet boundary conditions
Nonlinear Analysis 2022

L. Ferreri, B. Velichkov:
A one-sided two phase Bernoulli free boundary problem
(preprint) 2023

L. Ferreri, G. Verzini:
Asymptotic properties of an optimal principal Dirichlet eigenvalue
  arising in population dynamics
(preprint) 2023

L. Ferreri, B. Velichkov:
Regularity for one-phase Bernoulli problems with discontinuous weights
  and applications
(preprint) 2023

L. Ferreri, G. Tortone, B. Velichkov:
A capillarity one-phase Bernoulli free boundary problem
(preprint) 2023