Unified symmetry of the nonholonomic system of non-Chetaev type with unilateral constraints in event space
后其宝, 李元成, 王静, 夏丽莉
Unified symmetry of the nonholonomic system of non-Chetaev type with unilateral constraints in event space
Hou Qi-Bao(后其宝), Li Yuan-Cheng(李元成), Wang Jing(王静), and Xia Li-Li(夏丽莉)
中国物理B . 2007, (6): 1521 -1525 .  DOI: 10.1088/1009-1963/16/6/005