%0 Journal Article %A Jean-Yves Welschinger %T Invariants of real rational symplectic 4-manifolds and lower bounds in real enumerative geometry %J Comptes Rendus. Mathématique %D 2003 %P 341-344 %V 336 %N 4 %I Elsevier %R 10.1016/S1631-073X(03)00059-1 %G en %F CRMATH_2003__336_4_341_0