Thanks, et :-)
In response to your message below:
I'm not too keen on publishing my email address; moreover, without more details, I am, to put it mildly, a little wary of having my name associated with "a book...about 'NASA and ufo,'" whatever that means. At any rate, I presume the poster is referring to either one of the following Usenet posts:
a January 2001 post in sci.space.science or a November 2001 post in sci.space.history.