deletions | additions       diff --git a/Payam.tex b/Payam.tex  index 80f34ef..beb01f6 100644  --- a/Payam.tex  +++ b/Payam.tex 
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\begin{enumerate}  \item What happens if an interior piece approaches the pore?  \item In \cite{http://adsabs.harvard.edu/abs/2013PhRvE..87d2723R}, it is claimed  \end{enumerate}