%0 Journal Article %A Denny H. Leung %A Wee-Kee Tang %T $\ell^{1}$-Spreading models in subspaces of mixed Tsirelson spaces %J Studia Mathematica %D 2006 %P 47-68 %V 172 %N 1 %U http://geodesic.mathdoc.fr/articles/10.4064/sm172-1-3/ %R 10.4064/sm172-1-3 %G en %F 10_4064_sm172_1_3