Comment on the paper "Nature of Low-Temperature Phase Transitions in $\mathrm{CaMn_7O_{12}}$"

We insist on saying that the anomalies observed in magnetization, specific heat and thermal expansion of $\mathrm{CaMn_7O_{12}}$ at $\mathrm{T_S}=89$ K and $\mathrm{T_M}=49$ K reported in O. Volkova et al., Pis'ma v ZhETF 82, 498 (2005) [JETP Lett. 82, 444 (2005)] and mentioned in Pis'ma v ZhETF 82 724 (2005) [JETP Lett. 82, 642 (2005)] are both of magnetic origin.