%0 Journal Article %A Benois, Denis %T Infinitesimal deformations and the $\ell$-invariant %J Documenta mathematica %D 2010 %P 5-31 %V Andrei A. Suslin's Sixtieth Birthday %I mathdoc %U http://geodesic.mathdoc.fr/item/DOCMA_2010__S4__a20/ %G en %F DOCMA_2010__S4__a20