TY - BOOK AU - Krasnoselskii, M. A. AU - Zabreiko, P. P. TI - GEOMETRICAL METHODS OF NONLINEAR ANALYSIS U1 - 515.7248 PY - 1984/// CY - Berlin PB - Springer-Verlag N1 - Translation Of : Geometriceskie Metody Nelineinogo Analiza ER -