“The phylogeography of Y chromosome binary haplotypes and the origins of modern human populations”
Underhill, P. A., Passarino, G., Lin, A. A., Shen, P., Foley, R. A., Miraz—n Lahr, M., Oefner, P. J. and Cavalli-Sforza, L. L.
Annals Human Genetics, 2001, volume 65, pages 43-62