Bernardi, G. & Powers, D. (1992)
Molecular phylogeny of the prickly shark, Echinorhinus cookei, based on a nuclear (18s rRNA) and a mitochondrial (cytochrome b) gene.
Molecular Phylogenetics and Evolution, 1(2), 161–167 DOI: 10.1016/1055-7903(92)90027-E