Voir la notice de l'article provenant de la source Czech Digital Mathematics Library
@article{ARM_2006__42_5_a20, author = {Smetanov\'a, Dana}, title = {On second order {Hamiltonian} systems}, journal = {Archivum mathematicum}, pages = {341--347}, publisher = {mathdoc}, volume = {42}, number = {5}, year = {2006}, mrnumber = {2322420}, zbl = {1164.35304}, language = {en}, url = {http://geodesic.mathdoc.fr/item/ARM_2006__42_5_a20/} }
Smetanová, Dana. On second order Hamiltonian systems. Archivum mathematicum, Tome 42 (2006) no. 5, pp. 341-347. http://geodesic.mathdoc.fr/item/ARM_2006__42_5_a20/