%0 Journal Article %A Peter M. Levy %A Albert Fert %T The longevity of Jacques Friedel's model of the virtual bound state %J Comptes Rendus. Physique %D 2016 %P 447-454 %V 17 %N 3-4 %I Elsevier %R 10.1016/j.crhy.2015.12.011 %G en %F CRPHYS_2016__17_3-4_447_0