[3] JEPAX, , https://web.archive.org/web/20000919213635/http://x.jepa.or.jp/jepax/
[4] JepaX, , https://web.archive.org/web/20010308071816/http://x.jepa.or.jp/jepax/spec/jepaxspec09-sjis.html
[1] JepaX http://www.jepax.org/
[2] XMLの骨抜き利用法 - classics-XML.pdf, , https://www.joao-roiz.jp/mtoyo/XML/classics-XML.pdf#page=7