Hojman conserved quantity deduced by weak Noether symmetry for Lagrange systems
解加芳, 冮铁强, 梅凤翔
Hojman conserved quantity deduced by weak Noether symmetry for Lagrange systems
Xie Jia-Fang(解加芳), Gang Tie-Qiang(冮铁强), and Mei Feng-Xiang(梅凤翔)
中国物理B . 2008, (2): 390 -393 .  DOI: 10.1088/1674-1056/17/2/006