@article{SIGMA_2008_4_a32,
     author = {Anthony C. L. Ashton},
     title = {The {Fundamental} $k${-Form} and {Global} {Relations}},
     journal = {Symmetry, integrability and geometry: methods and applications},
     year = {2008},
     volume = {4},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SIGMA_2008_4_a32/}
}