TY - JOUR AU - Ketterer, Christian TI - Obata’s Rigidity Theorem for Metric Measure Spaces JO - Analysis and Geometry in Metric Spaces PY - 2015 VL - 3 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/AGMS_2015_3_1_a7/ LA - en ID - AGMS_2015_3_1_a7 ER -