%0 Journal Article %A Mustapha Lahyane %T Exceptional curves on rational surfaces having K2⩾0 %J Comptes Rendus. Mathématique %D 2004 %P 873-878 %V 338 %N 11 %I Elsevier %R 10.1016/j.crma.2004.03.029 %G en %F CRMATH_2004__338_11_873_0