syntax for bilingual page

Hi,

Is there a proper way to specify a title and an summary for an entry in two
different language?

I have tried to specify two title and summary with different xml:lang="xx" in
the same entry but it does not validate, and aggregators get confused.

I have tried different combination of html and xthml with <div lan="xx">, but
again, when I do manage to make those validate, the aggregators just print
both on the same line.

Finally I created two entries, both with the same ID, update and link, but
with a different lang tag <entry xml:lang="xx">, and different title and
summary. This seems to be the cleanest, but the aggregators see those as two
separate entries...

Thanks.

--
Yves.                                                  http://www.SollerS.ca/
                                                        xmpp:yves@...