1. E. De Giorgi, Convergence problems for functionals and operators,
2. A. Farina, B. Sciunzi, E. Valdinoci, Bernstein and De Giorgi type
3. A. Farina, E. Valdinoci, The state of the art of a conjecture of De Giorgi and related problems, In: Recent progress in Reaction-Diffusion systems and viscosity solutions,
4. A. Farina, E. Valdinoci, Rigidity results for elliptic PDEs with uniform
5. P. H. Rabinowitz, E. Stredulinsky, Extensions of Moser-Bangert theory: Locally minimal solutions,