[NTG-context] XML and references

Hello all, I'm trying to interpret something like <section label="intro:mixtureprob"> <title>The problem of the complex protein mixture</title> <content> <ref name="intro:mixtureprob"/> </content> </section> With the follwing mapping rules and am failing: \defineXMLenvironment [section] { \defineXMLargument [title] [\XMLpar{section}{label}{}] {\section} \defineXMLenvironment [content] {}{} } {} \defineXMLargument [ref] {\textreference[\XMLpar{ref}{name}{}]} I would appreciate any insight into my folly ... Thanks, Joh