@Book{Giorgi_2004_6246, author = {Giorgi, G. and Guerraggio, A. and Thierfelder, J.}, month = {March}, publisher = {Elsevier Science and Technology Books}, title = {Mathematics of optimization: {S}mooth and nonsmooth case}, year = {2004}, title_with_no_special_chars = {Mathematics of Optimization Smooth and Nonsmooth Case} }