deletions | additions       diff --git a/At_low_velocity_our_results__1.tex b/At_low_velocity_our_results__1.tex  index 8b433ac..6fbb684 100644  --- a/At_low_velocity_our_results__1.tex  +++ b/At_low_velocity_our_results__1.tex 
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At low velocity, our results show good agreement with the experiments of Markin \emph{et al.} \cite{Markin_2009} but in relative disagreement with the measurements of Cantero \emph{et al.} \cite{Cantero_2009} and the \textsc{Srim} model.   This The difference between experiments  could be due to  a simple experimental scaling issue related to the difference between measuring relative and absolute stopping power at low velocities \cite{Markin_2009}. Below $0.07~\mathrm{a.u.}$, the lack of experimental points precludes a direct comparison, but we find linear behavior at least down to $0.02~\mathrm{a.u.}$.   Below $0.02~\mathrm{a.u.}$ the direct real time integration becomes less efficient and the accuracy is compromised by the quality of the numerical time integrator and the number of steps necessary to complete a calculation~\cite{Schleife_2012}.