http://www.tracegenetics.com/Eshlemanetal2003.pdf.
Not long and dry at all. (Even Eshleman's dissertation at 130 pages is not long and dry. It do take some studying, though.)
According to the article, the Haplogroup X linkage would have been through Siberia, as Oppenheimer has it.
But how about those folks sailing the ice on TV last night? (There was almost 10 minutes of science in that two-hour show!) But it does not look like the latest studies are finding that linkage through mtDNA????
I was watchingThe Crusades as I am again tonight.