Kimball, R.T.; Wang, N.; Heimer-McGinn, V.; Ferguson, C.; Braun, E.L. (2013). "Identifying localized biases in large datasets: A case study using the avian tree of life". Molecular Phylogenetics and Evolution. 69 (3): 1021–1032. doi:10.1016/j.ympev.2013.05.029. PMID23791948.
Kimball, R.T.; Wang, N.; Heimer-McGinn, V.; Ferguson, C.; Braun, E.L. (2013). "Identifying localized biases in large datasets: A case study using the avian tree of life". Molecular Phylogenetics and Evolution. 69 (3): 1021–1032. doi:10.1016/j.ympev.2013.05.029. PMID23791948.