Select child nodes based on their contents

XML snippet:

<AA>
  <BB>foo</BB>
  <CC>bar</CC>
  <DD>baz</DD>
  <EE>bar</EE>
</AA>

How do I select all the child nodes of <AA> that have bar as its contents? In the example above, I'd want to select <CC> and <EE>. I'm thinking the solution is something like:

<xsl:template match="AA">
  <xsl:for-each select="???" />
</xsl:template>