TY  - JOUR
AU  - G.B. Gustafson
TI  - An integral equation for perturbed nonlinear functional differential equations, with applications to periodic solutions and nonlinear boundary value problems.
JO  - Journal für die reine und angewandte Mathematik
PY  - 1974
SP  - 35
EP  - 62
VL  - 271
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/JRAM_1974__271_151505/
ID  - JRAM_1974__271_151505
ER  -