@article {589,
	title = {Lie point symmetries for reduced Ermakov systems},
	journal = {Phys. Lett. A},
	volume = {332},
	year = {2004},
	pages = {25},
	attachments = {https://professor.ufrgs.br/sites/default/files/fernando-haas/files/lie_point.pdf},
	author = {F. Haas and J. Goedert}
}
