@article{GDZPPN002065185, title = {Closed forms on symplectic fibre bundles.}, journal = {Commentarii mathematici Helvetici}, volume = {58}, year = {1983}, pages = {617-621}, zbl = {0536.53040}, url = {http://dml.mathdoc.fr/item/GDZPPN002065185} }
Weinstein, A.; Lashof, R.; Gotay, M.J. Closed forms on symplectic fibre bundles.. Commentarii mathematici Helvetici, Tome 58 (1983) pp. 617-621. http://gdmltest.u-ga.fr/item/GDZPPN002065185/