TY - JOUR AU - Jean-Yves Welschinger TI - Invariants of real rational symplectic 4-manifolds and lower bounds in real enumerative geometry JO - Comptes Rendus. Mathématique PY - 2003 SP - 341 EP - 344 VL - 336 IS - 4 PB - Elsevier DO - 10.1016/S1631-073X(03)00059-1 LA - en ID - CRMATH_2003__336_4_341_0 ER -