%0 Journal Article %A Erwan Brugallé %T Surgery of real symplectic fourfolds and Welschinger invariants %J Journal of Singularities %D 2018 %P 267-294 %V 17 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.5427/jsing.2018.17l/ %R 10.5427/jsing.2018.17l %F 10_5427_jsing_2018_17l