Souriau, J. M. (1980), García, P. L.; Pérez-Rendón, A.; Souriau, J. M. (eds.), "Groupes differentiels", Differential Geometrical Methods in Mathematical Physics, Lecture Notes in Mathematics, vol. 836, Berlin, Heidelberg: Springer Berlin Heidelberg, pp. 91–128, doi:10.1007/bfb0089728, ISBN978-3-540-10275-5, retrieved 2022-01-17
Souriau, J. M. (1980), García, P. L.; Pérez-Rendón, A.; Souriau, J. M. (eds.), "Groupes differentiels", Differential Geometrical Methods in Mathematical Physics, Lecture Notes in Mathematics, vol. 836, Berlin, Heidelberg: Springer Berlin Heidelberg, pp. 91–128, doi:10.1007/bfb0089728, ISBN978-3-540-10275-5, retrieved 2022-01-17