deletions | additions       diff --git a/Payam.tex b/Payam.tex  index 838bf10..fbaa864 100644  --- a/Payam.tex  +++ b/Payam.tex 
...
\item Sound speed shouldn't depend on viscosity at except for near-supersonic flow. (\href{http://iopscience.iop.org/0370-1301/66/5/303/pdf/0370-1301_66_5_303.pdf}{Or does it?} \href{http://www.engineeringtoolbox.com/sound-speed-water-d_598.html}{Speed of sound table}, \href{http://resource.npl.co.uk/acoustics/techguides/soundpurewater/content.html#LUBBERS}{$c(T,P)$ fits}.)  \item \citet{http://adsabs.harvard.edu/abs/1995PhyA..214..185E},   \citet{10.1103/PhysRevE.51.803},   \citet{10.1103/PhysRevE.56.2950}, \citet{1995PhyA..214..185E},   \citet{Espanol_Rubio_Zuniga_1995},   \citet{Clercx_1997},  \citet{1993PhRvL..70..242K}  \end{itemize}