TY - JOUR AU - Rudolf, Boris TI - The generalized boundary value problem is a Fredholm mapping of index zero JO - Archivum mathematicum PY - 1995 SP - 55 EP - 58 VL - 31 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/ARM_1995__31_1_a5/ LA - en ID - ARM_1995__31_1_a5 ER -