Journal of Molecular Evolution
Journal of Molecular Evolution > 2009 > 68 > 4 > 293-310
Journal of Molecular Evolution > 2009 > 68 > 5 > 490-497
Journal of Molecular Evolution > 2009 > 68 > 5 > 506-515
Journal of Molecular Evolution > 2009 > 69 > 5 > 541-554