<?xml version="1.0"?> <!DOCTYPE subjectset PUBLIC "-//OASIS//DTD DocBook XML V4.1.2//EN" "http://www.oasis-open.org/docbook/xml/4.1.2/docbookx.dtd"> <subjectset scheme="libraryofcongress"><subject><subjectterm>Electronic Publishing</subjectterm></subject><subject><subjectterm>SGML (Computer program language)</subjectterm></subject></subjectset>