%0 Journal Article %A Roberto Ferreiro Pérez %A Jaime Muñoz Masqué %T Non-Hamiltonian Actions and Lie-Algebra Cohomology of Vector Fields %J Symmetry, integrability and geometry: methods and applications %D 2009 %V 5 %U http://geodesic.mathdoc.fr/item/SIGMA_2009_5_a62/ %G en %F SIGMA_2009_5_a62