TY - JOUR AU - Takeshi Sumitomo TI - On a certain class of Riemannian homogeneous spaces JO - Colloquium Mathematicum PY - 1972 SP - 129 EP - 133 VL - 26 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.4064/cm-26-1-129-133/ DO - 10.4064/cm-26-1-129-133 LA - en ID - 10_4064_cm_26_1_129_133 ER -