@article{10_2140_agt_2018_18_187,
     author = {Kasagawa, Ryoji},
     title = {A second cohomology class of the symplectomorphism group with the discrete topology},
     journal = {Algebraic and Geometric Topology},
     pages = {187--219},
     publisher = {mathdoc},
     volume = {18},
     number = {1},
     year = {2018},
     doi = {10.2140/agt.2018.18.187},
     url = {http://geodesic.mathdoc.fr/articles/10.2140/agt.2018.18.187/}
}