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方建会;陈培胜;张军. FORM INVARIANCE AND LIE SYMMETRY OF VARIABLE MASS NONHOLONOMIC MECHANICAL SYSTEM[J]. Applied Mathematics and Mechanics (English Edition), 2005, 26(2): 204-209 .
FANG Jian-hui;CHEN Pei-sheng;ZHANG Jun. FORM INVARIANCE AND LIE SYMMETRY OF VARIABLE MASS NONHOLONOMIC MECHANICAL SYSTEM[J]. Applied Mathematics and Mechanics (English Edition), 2005, 26(2): 204-209 .