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<blockquote type="cite"><div class="yiv1836319308ydp21e74d19yahoo-style-wrap"><div class="yiv1836319308ydp21e74d19signature"><p><font color="#000000">Gómez Sierra, Ph.D<br clear="none">Fundación Universitaria Juan de Castellanos <br clear="none">Cra 11 No. 11-44</font><font><font color="#000000"> - Tunja - Boyacà - Colombia</font><br clear="none"></font></p></div></div></blockquote></body></html>