@article{CMH_1983__58_139957,
     author = {A. Weinstein and R. Lashof and M.J. Gotay},
     title = {Closed forms on symplectic fibre bundles.},
     journal = {Commentarii mathematici Helvetici},
     pages = {617--621},
     publisher = {mathdoc},
     volume = {58},
     year = {1983},
     zbl = {0536.53040},
     url = {http://geodesic.mathdoc.fr/item/CMH_1983__58_139957/}
}