JT had marked up the first vol 17 article using the P5 output from the site as a guide, rather than a P4 document, so I did a basic conversion using XSLT, and some more tweaks with XPath searches and XSLT transforms to fix regular departures from the P4 DTD; then I went through the result and made all the corrections from the printed copy generated from the P5. This article is nearly done, but will need proofing once more; I suspect there are still some problems with the biblio.