="" class="an ">&ensp;</span>of <span  title="" class="an ">&ensp;</span>its <span  title="" class="an ">&ensp;</span>amplitude <span  title="" class="an ">&ensp;</span>distribution <span  title="" class="an ">&ensp;</span>The <span  title="" class="an ">&ensp;</span>frequency <span  title="" class="an ">&ensp;</span>and <span  title="" class="an ">&ensp;</span>amplitude <span  title="" class="an ">&ensp;</span>of <span  title="" class="an ">&ensp;</span>the <span  title="" class="an ">&ensp;</span>miniatur