deletions | additions       diff --git a/Payam.tex b/Payam.tex  index e35b1db..160990f 100644  --- a/Payam.tex  +++ b/Payam.tex 
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DNA electrophoresis in vicinity of a membrane pore: \citet{http://adsabs.harvard.edu/abs/2013PhRvE..87d2722R} and \citet{http://adsabs.harvard.edu/abs/2013PhRvE..87d2723R}  {\bf Some questions}: questions}  \begin{enumerate}  \item What happens if an interior DNA piece approaches the pore?