Under construction, available soon.
<P>
<P>
<H3>Return to:</H3>
<A HREF="http://www.math.utwente.nl/~twpolder/about.html/about.html">About the book</A><BR> 
<A HREF="http://www.math.utwente.nl/~twpolder/contents.html/cont.html">Table of contents</A><BR> 
<A HREF="http://www.math.utwente.nl/~twpolder/errata/errata.html">Errata</A><BR> 
<A HREF="http://www.math.utwente.nl/~twpolder/simulations.html/simul.html">Simulations</A><BR> 
<A HREF="http://www.math.utwente.nl/~twpolder/course96/homework.html">DISC Course 1996</A><BR> 
<A href=http://www.birkhauser.com/order/order.htm>How to order?</A><BR>
<A href=http://www.birkhauser.com>Birkhauser homepage</A>