TY - BOOK AU - Chang,Kung-Ching TI - Methods in nonlinear analysis SN - 3540241337 U1 - 515.355 22 PY - 2005/// CY - Berlin PB - Springer KW - Nonlinear theories KW - Differential equations, Nonlinear KW - Geometry differential KW - Mathematical physics N1 - Includes bibliographical references ER -