%0 Journal Article %A Lescornel, Hélène %A Loubes, Jean-Michel %A Chabriac, Claudie %T Unbiased risk estimation method for covariance estimation %J ESAIM: Probability and Statistics %D 2014 %P 251-264 %V 18 %I EDP-Sciences %U http://www.numdam.org/articles/10.1051/ps/2013034/ %R 10.1051/ps/2013034 %G en %F PS_2014__18__251_0