Smallness of sets of nondifferentiability of convex functions in non-separable Banach spaces
Some fixed point theorems for mappings satisfying Frum-Ketkov conditions
Some observations on local uniform boundedness principles. II
Some remarks on nonlinear functionals
Some topological properties preserved by nearness between operators and applications to P.D.E.
Stability of Critical Points under Small Perturbations. Part II: Analytic Theory.