oindent" ><span 
class="cmbx-12x-x-144">AMG4PSBLAS</span><br 
class="newline" /> <span 
class="cmbx-12x-x-144">User&#8217;s and Reference Guide</span><br 
class="newline" /> <span 
class="cmti-12">A guide for the Algebraic MultiGrid Preconditioners Package based on PSBLAS</span><br 
class="newline" /> <span 
class="cmbx-12">Pasqua D&#8217;Ambra</span><br 
class="newline" /><span 
class="cmr-12">IAC-CNR, Naples, Italy</span><br 
class="newline" /> <span 
class="cmbx-12">Fabio Durastante</span><br 
class="new