TY - JOUR AU - Franke, Jens AU - Runst, Thomas TI - Nonlinear perturbations of linear non-invertible boundary value problems in function spaces of type $B^s_{p,q}$ and $F^s_{p,q}$ JO - Czechoslovak Mathematical Journal PY - 1988 SP - 623 EP - 641 VL - 38 IS - 4 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.21136/CMJ.1988.102259/ DO - 10.21136/CMJ.1988.102259 LA - en ID - 10_21136_CMJ_1988_102259 ER -