%0 Journal Article %A Radosław Adamczak %A Alexander E. Litvak %A Alain Pajor %A Nicole Tomczak-Jaegermann %T Sharp bounds on the rate of convergence of the empirical covariance matrix %J Comptes Rendus. Mathématique %D 2011 %P 195-200 %V 349 %N 3-4 %I Elsevier %R 10.1016/j.crma.2010.12.014 %G en %F CRMATH_2011__349_3-4_195_0