TY - JOUR AU - E. I. Berezhnoi AU - A. A. Perfil'ev TI - Distinguishing Between Symmetric Spaces and $L^\infty$ by a Differential Basis JO - Matematičeskie zametki PY - 2001 SP - 515 EP - 523 VL - 69 IS - 4 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/MZM_2001_69_4_a1/ LA - ru ID - MZM_2001_69_4_a1 ER -