Mixed content not working for me

[Russell East]

How come the following doesn't work?
  <!ELEMENT   a   (#PCDATA|(a*)) >

I basically want my element a to either form an hierarchy
*or* have some text data.

But it seems I'm forced to have
  <!ELEMENT   a   (#PCDATA|a)* >

which I don't really want at all.
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       Russell East                    mailto:reast at esri.com
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