@article{GDZPPN002283875, title = {A Unified Formalism in Mechanics.}, journal = {Mathematische Annalen}, volume = {127}, year = {1954}, pages = {305-318}, zbl = {0056.17204}, url = {http://dml.mathdoc.fr/item/GDZPPN002283875} }
R.S., Capon. A Unified Formalism in Mechanics.. Mathematische Annalen, Tome 127 (1954) pp. 305-318. http://gdmltest.u-ga.fr/item/GDZPPN002283875/