1. Lecture Notes in Pure and Appl. Math.;W. Alt,1983
2. ESAIM Proc.;F.J. Aragón Artacho,2007
3. Aragón Artacho F.J., Geoffroy M.H., Characterization of metric regularity of subdifferentials, J. Convex Anal., 2008, 15(2), 365–380
4. Azé D., A unified theory for metric regularity of multifunctions, J. Convex Anal., 2006, 13(2), 225–252
5. Banach S., Théorie des Opérations Linéaires, Monografje Matematyczne, Warsaw, 1932