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- [23] Conformal invariance and conserved quantity of Mei symmetry for Appell equations in a holonomic system with mass variable APPLIED MECHANICS, MATERIALS AND MANUFACTURING IV, 2014, 670-671 : 617 - 625
- [27] Conformal invariance and conserved quantity of Mei symmetry for Appell equations in a nonholonomic system of Chetaev’s type Nonlinear Dynamics, 2014, 77 : 521 - 527