TY  - JOUR
AU  - Peter Hess
TI  - On a Method of Singular Perturbation Type for Proving the Solvability of Nonlinear Functional Equations in Banach Spaces.
JO  - Mathematische Zeitschrift
PY  - 1971
SP  - 355
EP  - 362
VL  - 122
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/MZ_1971__122_171612/
ID  - MZ_1971__122_171612
ER  -