TY - JOUR AU - R. Kaufman TI - A Kronecker theorem in functional analysis JO - Colloquium Mathematicum PY - 1973 SP - 247 EP - 250 VL - 28 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.4064/cm-28-2-247-250/ DO - 10.4064/cm-28-2-247-250 LA - en ID - 10_4064_cm_28_2_247_250 ER -