@article{10_1090_S0894_0347_06_00548_0,
     author = {Johnson, William and Maurey, Bernard and Schechtman, Gideon},
     title = {Weakly null sequences in {\dh}{\textquestiondown}\^a‚},
     journal = {Journal of the American Mathematical Society},
     pages = {25--36},
     publisher = {mathdoc},
     volume = {20},
     number = {1},
     year = {2007},
     doi = {10.1090/S0894-0347-06-00548-0},
     url = {http://geodesic.mathdoc.fr/articles/10.1090/S0894-0347-06-00548-0/}
}