> I've read a number of papers that said the information on the
> Dogon isn't correct (and that the Dogon themselves say it's not
> (like this one)
That paper, by B. Ortiz de Montellano, cites van Beek's 'Dogon Restudied' (mentioned in Laird Scranton's reply to you).
There's more by van Beek here (see p. 48 onwards) with a discussion of extra-terrestrial intelligence on p. 51. See also p. 55, 60, 65.