<bibliography 
         xmlns:r="http://www.r-project.org" 
         xmlns:omg="http://www.omegahat.org"
         xmlns:bioc="http://www.bioconductor.org"
         xmlns:js="http://www.r-project.org" 
	 xmlns:ltx="http://www.ctan.org"
         xmlns:jsx="http://www.ecmascript.org">

<biblioentry id="bib:libjson">
<title>libjson</title>
<author><firstname>Johnathan</firstname><surname>Wallace</surname></author>
<ulink url="http://libjson.sourceforge.net"/>
</biblioentry>

<biblioentry id="bib:rjson">
<title>The <r:pkg>rjson</r:pkg> package</title>
<author><firstname>Alex</firstname><surname>Couture-Beil</surname></author>
<pubdate>2011-6-26</pubdate>
</biblioentry>

</bibliography>