@article{10_4171_ggd_193,
     author = {Tim Austin and Assaf Naor and Romain Tessera},
     title = {Sharp quantitative nonembeddability of the {Heisenberg} group into superreflexive {Banach} spaces},
     journal = {Groups, geometry, and dynamics},
     pages = {497--522},
     year = {2013},
     volume = {7},
     number = {3},
     doi = {10.4171/ggd/193},
     url = {http://geodesic.mathdoc.fr/articles/10.4171/ggd/193/}
}