TY - JOUR AU - J. K. Moser TI - A~lemma on hyperbolic fixed points of diffeomorphisms JO - Trudy Matematicheskogo Instituta imeni V.A. Steklova PY - 1974 SP - 236 EP - 241 VL - 29 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/RM_1974_29_2_a16/ LA - en ID - RM_1974_29_2_a16 ER -