Borwein, Jonathan M. Techniques of variational analysis / by Jonathan M. Borwein and Qiji J. Zhu - New York: Springer science business media, 2005. - vi, 362p. - CMS Books in Mathematics . ISBN: 0387242988 Subjects--Topical Terms: Convx analysisMathSolvabilityVariational techniques Dewey Class. No.: 515.64 / BOR/T