TY - JOUR AU - Maria MoszyƄska TI - On rigid subsets of some manifolds JO - Colloquium Mathematicum PY - 1989 SP - 247 EP - 254 VL - 57 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.4064/cm-57-2-247-254/ DO - 10.4064/cm-57-2-247-254 LA - en ID - 10_4064_cm_57_2_247_254 ER -