TY - JOUR AU - Lai-Sang Young TI - A Closing Lemma on the Interval. JO - Inventiones mathematicae PY - 1979 SP - 179 EP - 188 VL - 54 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/IM_1979__54_142677/ ID - IM_1979__54_142677 ER -