@article{SIGMA_2005_1_a0,
     author = {B. Kent Harrison},
     title = {The {Differential} {Form} {Method} for {Finding} {Symmetries}},
     journal = {Symmetry, integrability and geometry: methods and applications},
     year = {2005},
     volume = {1},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SIGMA_2005_1_a0/}
}