@article{GMJ_1998__5_5_48886, author = {Tevdoradze, Z.}, title = {Vertical cohomologies and their application to completely integrable {Hamiltonian} systems.}, journal = {Georgian mathematical journal}, pages = {483--500}, year = {1998}, volume = {5}, number = {5}, zbl = {0968.58020}, language = {en}, url = {http://geodesic.mathdoc.fr/item/GMJ_1998__5_5_48886/} }