THE LIE SYMMETRIES AND CONSERVED QUANTITIES OF VARIABLE-MASS NONHOLONOMIC SYSTEM OF NON-CHETAEV’S TYPE IN PHASE SPACE
FANG Jian-hui;ZHAO Song-qing;JIAO Zhi-yong
Applied Mathematics and Mechanics (English Edition) . 2002, (10): 1215 -1220 . 

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