At 17:30 +0200 2005-08-07, Henrik Theiling wrote:

>I think kp and gb are labiovelar and kw and gw are labialised.

It's ambiguous. When I did Indo-European we used labiovelar for kw/gw.

http://en.wikipedia.org/wiki/Labiovelar
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Michael Everson * http://www.evertype.com