Vurpillot, F (Reprint Author), Univ Rouen, Grp Phys Mat, CNRS, UMR 6634, F-76801 St Etienne, France.
Vurpillot, F., Univ Rouen, Grp Phys Mat, CNRS, UMR 6634, F-76801 St Etienne, France.
Oberdorfer, C., Univ Stuttgart, Inst Mat Wissensch, Lehrstuhl Mat Phys, D-70569 Stuttgart, Germany.