共 50 条
- [38] Mei symmetry and their conserved quantities of Tzénoff equations for the variable mass nonholonomic systems Beijing Ligong Daxue Xuebao/Transaction of Beijing Institute of Technology, 2012, 32 (02): : 216 - 220
- [40] Lie symmetries and conserved quantities of constrained mechanical systems Acta Mechanica, 2000, 141 : 135 - 148