TY - JOUR AU - Fečkan, Michal TI - Multiple perturbed solutions near nondegenerate manifolds of solutions JO - Commentationes Mathematicae Universitatis Carolinae PY - 1993 SP - 635 EP - 643 VL - 34 IS - 4 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/CMUC_1993__34_4_a2/ LA - en ID - CMUC_1993__34_4_a2 ER -