TY - JOUR AU - Denny H. Leung AU - Wee-Kee Tang TI - $\ell^{1}$-Spreading models in subspaces of mixed Tsirelson spaces JO - Studia Mathematica PY - 2006 SP - 47 EP - 68 VL - 172 IS - 1 UR - http://geodesic.mathdoc.fr/articles/10.4064/sm172-1-3/ DO - 10.4064/sm172-1-3 LA - en ID - 10_4064_sm172_1_3 ER -