ONT></B></A>
<PRE>
  Let sE - A be an arbitrary pencil. Prior to calling the routine,
  this pencil must be transformed into a pencil with E in column
  echelon form. This may be accomplished by calling the SLICOT
  Library routine MB04UD. Depending on the value of MODE,
  submatrices of A and E are then reduced to one of the forms
  described above. Further details can be found in [1].

</PRE>
<A name="References"><B><FONT SIZE="+1">References</FONT></B></A>
<PRE>
  [1] Beelen, Th. and Van Dooren, P.
     