@article{1103857291, author = {Arens, R.}, title = {Classical relativistic particles}, journal = {Comm. Math. Phys.}, volume = {20}, number = {1}, year = {1971}, pages = { 139-149}, language = {en}, url = {http://dml.mathdoc.fr/item/1103857291} }
Arens, R. Classical relativistic particles. Comm. Math. Phys., Tome 20 (1971) no. 1, pp. 139-149. http://gdmltest.u-ga.fr/item/1103857291/