TY - JOUR AU - Mikio Kato AU - Takayuki Tamura TI - Uniform non-\(\ell_1^n\)-ness of \(\ell_1\)-sums of Banach spaces JO - Commentationes Mathematicae PY - 2007 SP - 161 EP - 169 VL - 47 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.14708/cm.v47i2.5246/ DO - 10.14708/cm.v47i2.5246 LA - pl ID - 10_14708_cm_v47i2_5246 ER -