Alternatives:	(mml file)  (full) (simple) (plain) (form) (slideshow)
File:	General/GenAttribs/xref1
CVS-ID:
Author:	Design Science, Inc. (D. Doyle, R.Miner)
Description:	test of xref attribute
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Source Code:

<math xmlns="http://www.w3.org/1998/Math/MathML" xref="x"> 
  <mn id="x">2</mn> 
</math>