On May 13, 2010, at 19:44 , Elie Moujaes wrote: > I could not find it within the QE 4.2 package in PlotPhon/ --- Paolo Giannozzi, Dept of Physics, University of Udine via delle Scienze 208, 33100 Udine, Italy Phone +39-0432-558216, fax +39-0432-558222