de Lustrac, André, <p>IEF, Univ. Paris-Sud, CNRS, UMR 8622, 91405 Orsay Cedex, France ;</p><p> </p><p class="OEAuthorAffiliation"><span style="font-size: 10.0pt; font-family: &quot;Times New Roman&quot;,&quot;serif&quot;; mso-ansi-language: FR; font-style: normal; mso-bidi, France