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Gómez-Díaz, E.; González-Solís, J.; Peinado, M.A.; Page, R.D.M. (2006). "Phylogeography of the Calonectris shearwaters using molecular and morphometric data". Molecular Phylogenetics and Evolution. 41 (2): 322–332. doi:10.1016/j.ympev.2006.05.006. PMID16814569. See Supplementary Data for morphological measurements.