@article{10_5427_jsing_2018_17l,
     author = {Erwan Brugall\'e},
     title = {Surgery of real symplectic fourfolds and {Welschinger} invariants},
     journal = {Journal of Singularities},
     pages = {267--294},
     publisher = {mathdoc},
     volume = {17},
     year = {2018},
     doi = {10.5427/jsing.2018.17l},
     url = {http://geodesic.mathdoc.fr/articles/10.5427/jsing.2018.17l/}
}