John Gatesy, Jonathan H. Geisler, Joseph Chang, Carl Buell, Annalisa Berta, Robert W. Meredith, Mark S. Springer, Michael R. McGowen: A phylogenetic blueprint for a modern whale, Molecular Phylogenetics and Evolution, 2012, Volume 66, Issue 2, Februar 2013, Pages 479–506, doi:10.1016/j.ympev.2012.10.012
John Gatesy, Jonathan H. Geisler, Joseph Chang, Carl Buell, Annalisa Berta, Robert W. Meredith, Mark S. Springer, Michael R. McGowen: A phylogenetic blueprint for a modern whale, Molecular Phylogenetics and Evolution, 2012, Volume 66, Issue 2, Februar 2013, Pages 479–506, doi:10.1016/j.ympev.2012.10.012