Noether--Lie symmetry and conserved quantities of mechanical system in phase space
方建会, 廖永潘, 丁 宁, 王 鹏
Noether--Lie symmetry and conserved quantities of mechanical system in phase space
Fang Jian-Hui(方建会), Liao Yong-Pan(廖永潘), Ding Ning(丁宁), and Wang Peng(王鹏)
中国物理B . 2006, (12): 2792 -2795 .  DOI: 10.1088/1009-1963/15/12/005