TY - JOUR AU - Chang-Yu Xia TI - A Sphere Theorem for Submanifolds in a Manifold with Pinched Positive Curvature. JO - Monatshefte für Mathematik PY - 1997 SP - 365 EP - 368 VL - 124 IS - 4 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/MOMA_1997__124_4_178796/ ID - MOMA_1997__124_4_178796 ER -