@article{10_4064_ba52_2_5,
     author = {Zofia St\k{e}pie\'n and Aleksy Tralle},
     title = {A {Note} on {Hamiltonian} {Lie} {Group} {Actions
} and {Massey} {Products}},
     journal = {Bulletin of the Polish Academy of Sciences. Mathematics},
     pages = {141--149},
     publisher = {mathdoc},
     volume = {52},
     number = {2},
     year = {2004},
     doi = {10.4064/ba52-2-5},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/ba52-2-5/}
}