Journal of Molecular Evolution
Journal of Molecular Evolution > 2009 > 68 > 2 > 192-196
Journal of Molecular Evolution > 2009 > 68 > 5 > 461-474
Journal of Molecular Evolution > 2009 > 69 > 5 > 452-457
Journal of Molecular Evolution > 2009 > 69 > 6 > 579-588