This presentation: http://www.cafeconleche.org/slides/sd2002east/dom/
XML in a Nutshell, 2nd Edition
Elliotte Rusty Harold and W. Scott Means
O'Reilly & Associates, 2002
ISBN 0-596-00292-0
Processing XML with Java
Elliotte Rusty Harold
Addison-Wesley, 2002
ISBN 0-201-77186-1
Who's Jon Johansen? http://www.eff.org/IP/DeCSS_prosecutions/Johansen_DeCSS_case/