An observation on Classification of Lie point symmetries for quadratic Li\'{e}nard type equation $\ddot{x}+f\left(x\right) \dot{x}^{2}+g\left( x\right) =0$ [JMP 54, 053506 (2013)] and its erratum [JMP 55, 059901 (2014)]
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Most books are stored in the elastic cloud where traffic is expensive. For this reason, we have a limit on daily download.
