<?xml version="1.0"?>
<!DOCTYPE para PUBLIC "-//OASIS//DTD DocBook XML V4.1.2//EN" "http://www.oasis-open.org/docbook/xml/4.1.2/docbookx.dtd">
<para>
Consult <citation>AhoSethiUllman96</citation> for more details on
abstract syntax tree construction.
</para>
