1. Mathematical properties of optimization problems defined by positively homogeneous functions;Lasserre;J. Optim. Theory Appl.,2002
2. Convex Functions, Monotone Operators and Differentiability;Phelps,1993
3. Techniques of Variational Analysis;Borwein,2005
4. Variational Analysis and Generalized Differentiation, I: Basic Theory, II: Applications;Mordukhovich,2006
5. Nonsmooth sequential analysis in Asplund space;Mordukhovich;Trans. Amer. Math. Soc.,1996